AnatomyOrganismsChemicals and DrugsPhenomena and Processes
BlastodermEmbryo, NonmammalianDrosophilaGastrulaBlastodiscDrosophila ProteinsDrosophila melanogasterBody PatterningChick EmbryoTriboliumGenes, InsectGene Expression Regulation, DevelopmentalCoturnixInsect ProteinsHeteropteraMorphogenesisQuailFushi Tarazu Transcription FactorsOrganizers, EmbryonicBlastulaZebrafishVitelline MembraneNodal Signaling LigandsCleavage Stage, OvumInsect HormonesHomeodomain ProteinsGerm CellsAminopterinGerm LayersEmbryonic InductionTranscription Factors
Blastoderm
A layer of cells lining the fluid-filled cavity (blastocele) of a BLASTULA, usually developed from a fertilized insect, reptilian, or avian egg.
Embryo, Nonmammalian
The developmental entity of a fertilized egg (ZYGOTE) in animal species other than MAMMALS. For chickens, use CHICK EMBRYO.
Drosophila
A genus of small, two-winged flies containing approximately 900 described species. These organisms are the most extensively studied of all genera from the standpoint of genetics and cytology.
Gastrula
The developmental stage that follows BLASTULA or BLASTOCYST. It is characterized by the morphogenetic cell movements including invagination, ingression, and involution. Gastrulation begins with the formation of the PRIMITIVE STREAK, and ends with the formation of three GERM LAYERS, the body plan of the mature organism.
Blastodisc
A small whitish spot on the surface of the EGG YOLK where cleavage begins. Upon fertilization the cytoplasm streams from the vegetal pole away from the yolk to the animal pole where cleavage will occur. This germinal area eventually flattens into a layer of cells (BLASTODERM) that covers the yolk completely.
Drosophila Proteins
Proteins that originate from insect species belonging to the genus DROSOPHILA. The proteins from the most intensely studied species of Drosophila, DROSOPHILA MELANOGASTER, are the subject of much interest in the area of MORPHOGENESIS and development.
Drosophila melanogaster
A species of fruit fly much used in genetics because of the large size of its chromosomes.
Body Patterning
The processes occurring in early development that direct morphogenesis. They specify the body plan ensuring that cells will proceed to differentiate, grow, and diversify in size and shape at the correct relative positions. Included are axial patterning, segmentation, compartment specification, limb position, organ boundary patterning, blood vessel patterning, etc.
Chick Embryo
The developmental entity of a fertilized chicken egg (ZYGOTE). The developmental process begins about 24 h before the egg is laid at the BLASTODISC, a small whitish spot on the surface of the EGG YOLK. After 21 days of incubation, the embryo is fully developed before hatching.
Tribolium
A genus of small beetles of the family Tenebrionidae; T. confusum is the "confused flour beetle".
Genes, Insect
The functional hereditary units of INSECTS.
Gene Expression Regulation, Developmental
Any of the processes by which nuclear, cytoplasmic, or intercellular factors influence the differential control of gene action during the developmental stages of an organism.
Coturnix
A genus of BIRDS in the family Phasianidae, order GALLIFORMES, containing the common European and other Old World QUAIL.
Insect Proteins
Proteins found in any species of insect.
Heteroptera
A suborder of HEMIPTERA, called true bugs, characterized by the possession of two pairs of wings. It includes the medically important families CIMICIDAE and REDUVIIDAE. (From Dorland, 28th ed)
Morphogenesis
The development of anatomical structures to create the form of a single- or multi-cell organism. Morphogenesis provides form changes of a part, parts, or the whole organism.
Quail
Common name for two distinct groups of BIRDS in the order GALLIFORMES: the New World or American quails of the family Odontophoridae and the Old World quails in the genus COTURNIX, family Phasianidae.
Fushi Tarazu Transcription Factors
Fushi tarazu transcription factors were originally identified in DROSOPHILA. They are found throughout ARTHROPODS and play important roles in segmentation and CENTRAL NERVOUS SYSTEM development.
Organizers, Embryonic
Cells in certain regions of an embryo that self-regulate embryonic development. These organizers have been found in dorsal and ventral poles of GASTRULA embryos, including Spemann organizer in amphibians, and Hensen node in chicken and mouse. These organizer cells communicate with each other via a network of secreted signaling proteins, such as BONE MORPHOGENETIC PROTEINS and their antagonists (chordin and noggin).
Blastula
An early non-mammalian embryo that follows the MORULA stage. A blastula resembles a hollow ball with the layer of cells surrounding a fluid-filled cavity (blastocele). The layer of cells is called BLASTODERM.
Zebrafish
An exotic species of the family CYPRINIDAE, originally from Asia, that has been introduced in North America. They are used in embryological studies and to study the effects of certain chemicals on development.
Vitelline Membrane
The plasma membrane of the egg.
Nodal Signaling Ligands
Members of the transforming growth factor superfamily that play a role in pattern formation and differentiation during the pregastrulation and GASTRULATION stages of chordate development. Several nodal signaling ligands are specifically involved in the genesis of left-right asymmetry during development. The protein group is named after a critical region of the vertebrate embryo PRIMITIVE STREAK referred to as HENSEN'S NODE.
Cleavage Stage, Ovum
The earliest developmental stage of a fertilized ovum (ZYGOTE) during which there are several mitotic divisions within the ZONA PELLUCIDA. Each cleavage or segmentation yields two BLASTOMERES of about half size of the parent cell. This cleavage stage generally covers the period up to 16-cell MORULA.
Insect Hormones
Hormones secreted by insects. They influence their growth and development. Also synthetic substances that act like insect hormones.
Homeodomain Proteins
Proteins encoded by homeobox genes (GENES, HOMEOBOX) that exhibit structural similarity to certain prokaryotic and eukaryotic DNA-binding proteins. Homeodomain proteins are involved in the control of gene expression during morphogenesis and development (GENE EXPRESSION REGULATION, DEVELOPMENTAL).
Germ Cells
The reproductive cells in multicellular organisms at various stages during GAMETOGENESIS.
Aminopterin
A folic acid derivative used as a rodenticide that has been shown to be teratogenic.
Germ Layers
The three primary germinal layers (ECTODERM; ENDODERM; and MESODERM) developed during GASTRULATION that provide tissues and body plan of a mature organism. They derive from two early layers, hypoblast and epiblast.
Embryonic Induction
The complex processes of initiating CELL DIFFERENTIATION in the embryo. The precise regulation by cell interactions leads to diversity of cell types and specific pattern of organization (EMBRYOGENESIS).
Transcription Factors
Endogenous substances, usually proteins, which are effective in the initiation, stimulation, or termination of the genetic transcription process.

The Drosophila melanogaster homologue of the Xeroderma pigmentosum D gene product is located in euchromatic regions and has a dynamic response to UV light-induced lesions in polytene chromosomes. (1/342)

The XPD/ERCC2/Rad3 gene is required for excision repair of UV-damaged DNA and is an important component of nucleotide excision repair. Mutations in the XPD gene generate the cancer-prone syndrome, xeroderma pigmentosum, Cockayne's syndrome, and trichothiodystrophy. XPD has a 5'- to 3'-helicase activity and is a component of the TFIIH transcription factor, which is essential for RNA polymerase II elongation. We present here the characterization of the Drosophila melanogaster XPD gene (DmXPD). DmXPD encodes a product that is highly related to its human homologue. The DmXPD protein is ubiquitous during development. In embryos at the syncytial blastoderm stage, DmXPD is cytoplasmic. At the onset of transcription in somatic cells and during gastrulation in germ cells, DmXPD moves to the nuclei. Distribution analysis in polytene chromosomes shows that DmXPD is highly concentrated in the interbands, especially in the highly transcribed regions known as puffs. UV-light irradiation of third-instar larvae induces an increase in the signal intensity and in the number of sites where the DmXPD protein is located in polytene chromosomes, indicating that the DmXPD protein is recruited intensively in the chromosomes as a response to DNA damage. This is the first time that the response to DNA damage by UV-light irradiation can be visualized directly on the chromosomes using one of the TFIIH components.  (+info)

Cell death in the avian blastoderm: resistance to stress-induced apoptosis and expression of anti-apoptotic genes. (2/342)

We investigated the expression of an apoptotic cell death program in blastodermal cells prior to gastrulation and the susceptibility of these cells to stress-induced cell death. A low frequency (3.1%) of apoptotic blastodermal cells was observed in Hoechst 33342-vitally stained cytological preparations of complete blastoderms from unincubated eggs. These cells showed the stereotypic features of apoptosis including a progression of nuclear changes, cell shrinkage and blebbing, and the formation of apoptotic bodies. Prolonged storage of eggs at 12 degrees C induced apoptosis in blastodermal cells (14%). A modest amount of apoptosis (10%) was also induced at the heat shock temperature of 48 degrees C, but not at 45 degrees C. Etoposide and other potent cytotoxic drugs failed to induce apoptosis in the blastodermal cells after 4 h of exposure. Progressively more apoptosis was induced at 8 and 24 h, but it did not exceed 35% of the cells. We detected transcripts for the anti-apoptotic genes bcl-2, bcl-xL, and hsp70. The developmental expression of these genes, especially hsp70, correlated with the delayed and limited stress-induction of apoptosis. These studies reveal the capacity of pre-streak blastodermal cells to engage in apoptosis and their relative resistance to stress conditions. This may be due to the prominent expression of hsp70 and/or multiple cell death genes which primarily antagonize cell death.  (+info)

Reconstitution of the organizer is both sufficient and required to re-establish a fully patterned body plan in avian embryos. (3/342)

Lateral blastoderm isolates (LBIs) at the late gastrula/early neurula stage (i.e., stage 3d/4) that lack Hensen's node (organizer) and primitive streak can reconstitute a functional organizer and primitive streak within 10-12 hours in culture. We used LBIs to study the initiation and regionalization of the body plan. A complete body plan forms in each LBI by 36 hours in culture, and normal craniocaudal, dorsoventral, and mediolateral axes are re-established. Thus, reconstitution of the organizer is sufficient to re-establish a fully patterned body plan. LBIs can be modified so that reconstitution of the organizer does not occur. In such modified LBIs, tissue-type specific differentiation (with the exception of heart differentiation) and reconstitution of the body plan fail to occur. Thus, the reconstitution of the organizer is not only sufficient to re-establish a fully patterned body plan, it is also required. Finally, our results show that formation and patterning of the heart is under the control of the organizer, and that such control is exerted during the early to mid-gastrula stages (i.e., stages 2-3a), prior to formation of the fully elongated primitive streak.  (+info)

Timing and cell interactions underlying neural induction in the chick embryo. (4/342)

Previous studies on neural induction have identified regionally localized inducing activities, signaling molecules, potential competence factors and various other features of this important, early differentiation event. In this paper, we have developed an improved model system for analyzing neural induction and patterning using transverse blastoderm isolates obtained from gastrulating chick embryos. We use this model to establish the timing of neural specification and the spatial distribution of perinodal cells having organizer activity. We show that a tissue that acts either as an organizer or as an inducer of an organizer is spatially co-localized with the prospective neuroectoderm immediately rostral to the primitive streak in the early gastrula. As the primitive streak elongates, this tissue with organizing activity and the prospective neuroectoderm rostral to the streak separate. Furthermore, we show that up to and through the mid-primitive streak stage (i.e., stage 3c/3+), the prospective neuroectoderm cannot self-differentiate (i.e. , express neural markers and acquire neural plate morphology) in isolation from tissue with organizer activity. Signals from the organizer and from other more caudal regions of the primitive streak act on the rostral prospective neuroectoderm and the latter gains potency (i.e., is specified) by the fully elongated primitive streak stage (i.e., stage 3d). Transverse blastoderm isolates containing non-specified, prospective neuroectoderm provide an improved model system for analyzing early signaling events involved in neuraxis initiation and patterning.  (+info)

Analysis of an even-skipped rescue transgene reveals both composite and discrete neuronal and early blastoderm enhancers, and multi-stripe positioning by gap gene repressor gradients. (5/342)

The entire functional even-skipped locus of Drosophila melanogaster is contained within a 16 kilobase region. As a transgene, this region is capable of rescuing even-skipped mutant flies to fertile adulthood. Detailed analysis of the 7.7 kb of regulatory DNA 3' of the transcription unit revealed ten novel, independently regulated patterns. Most of these patterns are driven by non-overlapping regulatory elements, including ones for syncytial blastoderm stage stripes 1 and 5, while a single element specifies both stripes 4 and 6. Expression analysis in gap gene mutants showed that stripe 5 is restricted anteriorly by Kruppel and posteriorly by giant, the same repressors that regulate stripe 2. Consistent with the coregulation of stripes 4 and 6 by a single cis-element, both the anterior border of stripe 4 and the posterior border of stripe 6 are set by zygotic hunchback, and the region between the two stripes is 'carved out' by knirps. Thus the boundaries of stripes 4 and 6 are set through negative regulation by the same gap gene domains that regulate stripes 3 and 7 (Small, S., Blair, A. and Levine, M. (1996) Dev. Biol. 175, 314-24), but at different concentrations. The 3' region also contains a single element for neurogenic expression in ganglion mother cells 4-2a and 1-1a, and neurons derived from them (RP2, a/pCC), suggesting common regulators in these lineages. In contrast, separable elements were found for expression in EL neurons, U/CQ neurons and the mesoderm. The even-skipped 3' untranslated region is required to maintain late stage protein expression in RP2 and a/pCC neurons, and appears to affect protein levels rather than mRNA levels. Additionally, a strong pairing-sensitive repression element was localized to the 3' end of the locus, but was not found to contribute to efficient functional rescue.  (+info)

A transcription unit at the ken and barbie gene locus encodes a novel Drosophila zinc finger protein. (6/342)

We describe a novel Drosophila transcription unit, located in chromosome region 60A. It encodes a zinc finger protein that is expressed in distinct spatial and temporal patterns during embryogenesis. Its initial expression occurs in a stripe at the anterior and the posterior trunk boundary, respectively. The two stripes are activated and spatially controlled by gap-gene activities. The P-element of the enhancer trap line l(2)02970 is inserted in the 5'-region of the transcript and causes a ken and barbie (ken) phenotype, associated with malformation of male genital structures.  (+info)

Induction of the mesendoderm in the zebrafish germ ring by yolk cell-derived TGF-beta family signals and discrimination of mesoderm and endoderm by FGF. (7/342)

The endoderm forms the gut and associated organs, and develops from a layer of cells which emerges during gastrula stages in the vertebrate embryo. In comparison to mesoderm and ectoderm, little is known about the signals which induce the endoderm. The origin of the endoderm is intimately linked with that of mesoderm, both by their position in the embryo, and by the molecules that can induce them. We characterised a gene, zebrafish gata5, which is expressed in the endoderm from blastula stages and show that its transcription is induced by signals originating from the yolk cell. These signals also induce the mesoderm-expressed transcription factor no tail (ntl), whose initial expression coincides with gata5 in the cells closest to the blastoderm margin, then spreads to encompass the germ ring. We have characterised the induction of these genes and show that ectopic expression of activin induces gata5 and ntl in a pattern which mimics the endogenous expression, while expression of a dominant negative activin receptor abolishes ntl and gata5 expression. Injection of RNA encoding a constitutively active activin receptor leads to ectopic expression of gata5 and ntl. gata5 is activated cell-autonomously, whereas ntl is induced in cells distant from those which have received the RNA, showing that although expression of both genes is induced by a TGF-beta signal, expression of ntl then spreads by a relay mechanism. Expression of a fibroblast growth factor (eFGF) or a dominant negatively acting FGF receptor shows that ntl but not gata5 is regulated by FGF signalling, implying that this may be the relay signal leading to the spread of ntl expression. In embryos lacking both squint and cyclops, members of the nodal group of TGF-beta related molecules, gata5 expression in the blastoderm is abolished, making these factors primary candidates for the endogenous TGF-beta signal inducing gata5.  (+info)

Characterization of Ca2+-dependent phospholipase A2 activity during zebrafish embryogenesis. (8/342)

We have developed a simple fluorescent assay for detection of phospholipase A2 (PLA2) activity in zebrafish embryos that utilizes a fluorescent phosphatidylcholine substrate. By using this assay in conjunction with selective PLA2 inhibitors and Western blot analysis, we identified the principal activity in zebrafish embryogenesis as characteristic of the Ca2+-dependent cytosolic PLA2 (cPLA2) subtype. Embryonic cPLA2 activity remained constant from the 1-cell stage until the onset of somitogenesis, at which time it increased sharply. This increase was preceded by the expression of a previously identified zebrafish cPLA2 homologue (Nalefski, E., Sultzman, L., Martin, D., Kriz, R., Towler, P., Knopf, J., and Clark, J. (1994) J. Biol. Chem. 269, 18239-18249). By using a quenched BODIPY-labeled phosphatidylcholine that fluoresces only upon cleavage by PLA2, lipase activity was visualized in the cells of living embryos where it localized to perinuclear membranes.  (+info)

Dynein anchors its mRNA cargo after apical transport in the Drosophila blastoderm embryo. - Oxford Neuroscience
Molecular motors actively transport many types of cargo along the cytoskeleton in a wide range of organisms. One class of cargo is localized mRNAs, which are transported by myosin on actin filaments or by kinesin and dynein on microtubules. How the cargo is kept at its final intracellular destination and whether the motors are recycled after completion of transport are poorly understood. Here, we use a new RNA anchoring assay in living Drosophila blastoderm embryos to show that apical anchoring of mRNA after completion of dynein transport does not depend on actin or on continuous active transport by the motor. Instead, apical anchoring of RNA requires microtubules and involves dynein as a static anchor that remains with the cargo at its final destination. We propose a general principle that could also apply to other dynein cargo and to some other molecular motors, whereby cargo transport and anchoring reside in the same molecule.
https://www.neuroscience.ox.ac.uk/publications/894358
Bicaudal mutations of Drosophila melanogaster: alteration of blastoderm cell fate.<...Bicaudal mutations of Drosophila melanogaster: alteration of blastoderm cell fate.<...
TY - JOUR. T1 - Bicaudal mutations of Drosophila melanogaster. T2 - alteration of blastoderm cell fate.. AU - Mohler, J.. AU - Wieschaus, E. F.. N1 - Copyright: Copyright 2018 Medline is the source for the citation and abstract of this record.. PY - 1985. Y1 - 1985. UR - http://www.scopus.com/inward/record.url?scp=0022322047&partnerID=8YFLogxK. UR - http://www.scopus.com/inward/citedby.url?scp=0022322047&partnerID=8YFLogxK. U2 - 10.1101/SQB.1985.050.01.015. DO - 10.1101/SQB.1985.050.01.015. M3 - Article. C2 - 3938358. AN - SCOPUS:0022322047. VL - 50. SP - 105. EP - 111. JO - Cold Spring Harbor Symposia on Quantitative Biology. JF - Cold Spring Harbor Symposia on Quantitative Biology. SN - 0091-7451. ER - ...
https://collaborate.princeton.edu/en/publications/bicaudal-mutations-of-drosophila-melanogaster-alteration-of-blast
Facilitated transport of a Dpp/Scw heterodimer by Sog/Tsg leads to robust patterning of the Drosophila blastoderm embryo. -...Facilitated transport of a Dpp/Scw heterodimer by Sog/Tsg leads to robust patterning of the Drosophila blastoderm embryo. -...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
https://www.ncbi.nlm.nih.gov/pubmed/15797386
Kollers sickle - WikipediaKollers sickle - Wikipedia
In avian gastrulation, Kollers sickle is a local thickening of cells at the posterior edge of the upper layer of the area pellucida called the epiblast. Kollers sickle is crucial for avian development, due to its critical role in inducing the differentiation of various avian body parts. Kollers sickle induces primitive streak and Hensens node, which are major components of avian gastrulation. Avian gastrulation is a process by which developing cells in an avian embryo move relative to one another in order to form the three germ layers (endoderm, mesoderm, and ectoderm). The thickening of the epiblast in Kollers sickle acts as a margin separating sheets of cells from posterior side of avian blastoderms from hypoblasts and area opaca endoderm. The blastoderm is a single layer of cells, and the hypoblast and area opaca endoderm cells lie directly below the blastoderm. Kollers sickle arises from the midpoint, between the hypoblast cells and the area opaca endoderm. As blastoderm cells migrate ...
https://en.wikipedia.org/wiki/Koller's_sickle
The initiation of pair-rule stripes in the Drosophila blastoderm<...The initiation of pair-rule stripes in the Drosophila blastoderm<...
TY - JOUR. T1 - The initiation of pair-rule stripes in the Drosophila blastoderm. AU - Small, Stephen. AU - Levine, Michael. PY - 1991/8. Y1 - 1991/8. N2 - The interactions between the products of gap genes and pair-rule promoters results in the single most dramatic increase in the spatial complexity of gene expression during the segmentation process. We attempt to relate recent findings on the regulation of striped patterns of gene expression in the early Drosophila embryo to general strategies of gene expression and development employed by higher organisms.. AB - The interactions between the products of gap genes and pair-rule promoters results in the single most dramatic increase in the spatial complexity of gene expression during the segmentation process. We attempt to relate recent findings on the regulation of striped patterns of gene expression in the early Drosophila embryo to general strategies of gene expression and development employed by higher organisms.. UR - ...
https://collaborate.princeton.edu/en/publications/the-initiation-of-pair-rule-stripes-in-the-drosophila-blastoderm
Regulation of Hox gene expression and posterior development by the Xenopus caudal homologue Xcad3 | The EMBO JournalRegulation of Hox gene expression and posterior development by the Xenopus caudal homologue Xcad3 | The EMBO Journal
The prototype of the Cdx family of homeodomain transcription factors is the Drosophila caudal protein. The initial maternal expression of caudal mRNA is ubiquitous and a posterior to anterior gradient of the protein develops during the syncytial blastoderm stage and persists until the onset of cellularization. Zygotic expression, which commences in the cellular blastoderm stage, is also localized to the posterior in a region which gives rise to terminal abdominal structures and the hindgut. During later embryonic development, expression of caudal is found in the midgut, hindgut and Malpigian tubules (MacDonald and Struhl, 1986; Mlodzik and Gehring, 1987).. Caudal homologues have been identified in a wide range of animal groups. A caudal‐related gene with a similar posterior expression pattern has been cloned from the short or intermediate germ band insect Bombyx mori and homologues are present in other invertebrates, including the nematode worm Caenorhabditis elegans and the annelid worm ...
http://emboj.embopress.org/content/17/12/3413
Search | The Embryo Project EncyclopediaSearch | The Embryo Project Encyclopedia
This image shows a chicken (Gallus gallus) embryo undergoing gastrulation in stage four (18-19 hrs after laying) according to the Hamburger-Hamilton staging series. At this point in time the chicken embryo is a blastoderm (shown in blue). The first magnification of the embryo shows that the blastoderm cell layers have thickened to form the primitive streak and Hensens node. The primitive streak extends from the posterior (P) region to the anterior (A) region. The second rectangular magnification shows the blastoderm cross-sectioned through the primitive streak.. Format: Graphics Subject: Processes, Organisms, Theories ...
https://embryo.asu.edu/search?text=blastocoel
Search | The Embryo Project EncyclopediaSearch | The Embryo Project Encyclopedia
This image shows a chicken (Gallus gallus) embryo undergoing gastrulation in stage four (18-19 hrs after laying) according to the Hamburger-Hamilton staging series. At this point in time the chicken embryo is a blastoderm (shown in blue). The first magnification of the embryo shows that the blastoderm cell layers have thickened to form the primitive streak and Hensens node. The primitive streak extends from the posterior (P) region to the anterior (A) region. The second rectangular magnification shows the blastoderm cross-sectioned through the primitive streak.. Format: Graphics Subject: Processes, Organisms, Theories ...
https://embryo.asu.edu/search?text=evolutionary%20developmental%20biology&%3Bf%5B0%5D=dc_subject_embryo%3A2988&%3Bf%5B1%5D=dc_subject_embryo%3A52&f%5B0%5D=dc_subject_embryo%3A95&f%5B1%5D=dc_subject_embryo%3A51&f%5B2%5D=dc_subject_embryo%3A5
Blastoderm Formation and Cellularisation in Drosophila melanogasterBlastoderm Formation and Cellularisation in Drosophila melanogaster
Immediately following fertilisation in Drosophilaand many other arthropods, the embryo undergoes a series of rapid syncytial nuclear divisions
http://www.els.net/WileyCDA/ElsArticle/refId-a0001071.html
PARsing polarity | Journal of Cell SciencePARsing polarity | Journal of Cell Science
The establishment of cell polarity is crucial for building and maintaining multicellular organisms. In Drosophila, the protein kinase Par-1 is thought to be critically involved in establishing polarity but, because par-1 mutants die early in development, the function of the kinase is poorly characterized. Now, on p. 711, Richard Carthew and colleagues use RNAi to characterize the role of Par-1 in Drosophila embryos and eye imaginal discs. By depleting maternal and zygotic Par-1, they discover that it restricts the adherens junctions that link neighbouring cells to an apical position within blastoderm cells, thus revealing a role for it in establishment of cell polarity. Other RNAi experiments indicate that Par-1 is not essential for maintaining epithelial cell polarity once it is established. However, since Par-1 overexpression disrupts polarity, Par-1 must play some role in maintenance of polarity. Finally, the authors use immunostaining and epistasis analysis to uncover a novel role for Par-1: ...
http://jcs.biologists.org/content/119/4/e405
ZFIN Gene: mepceaZFIN Gene: mepcea
Predicted to have O-methyltransferase activity; RNA 5-methyltransferase activity; and snRNA binding activity. Predicted to be involved in positive regulation of protein localization to Cajal body; positive regulation of snRNA transcription by RNA polymerase II; and snRNA modification. Predicted to localize to nucleus and ribonucleoprotein complex. Is expressed in blastoderm cell and brain. Orthologous to human MEPCE (methylphosphate capping enzyme ...
http://zfin.org/ZDB-GENE-030131-3936
DNA Methylation: Development, Genetic Disease and Cancer by C. Bonifer, P. Lefevre (auth.), Prof. Dr. Walter Doerfler, - GO...
An association of MBD2/3 with RPD3 and MI-2 has been suggested previously, based on results from co-immunoprecipitation experiments (Tweedie et al. 1999). Biochemical fractionation of protein extracts also suggested the presence of MBD2/3Δ in the Drosophila MI-2/NuRD complex (Ballestar et al. 2001; Marhold et al. 2004a). MBD2/3 associates with DNA during embryogenesis. During cleavage and syncytial blastoderm stages, MBD2/3 is excluded from DNA. This pattern changes dramatically during cellular blastoderm, when the protein forms Epigenetic Regulation in Drosophila 29 bright foci that precisely colocalize with DNA (Marhold et al. Until recently, the ability of the protein to bind methylated DNA has only been analyzed in a very restricted experimental context. All in vitro assays were performed with probes that were methylated at CpGs, which does not reflect the endogenous pattern of DNA methylation in the fly. In addition, the binding of MBD2/3 to Drosophila DNA had not been investigated in ...
http://gojapan.seamolec.org/index.php/read/dna-methylation-development-genetic-disease-and-cancer
Vasculogenesis in the early quail blastodisc as studied with a monoclonal antibody recognizing endothelial cells at eagle-i...Vasculogenesis in the early quail blastodisc as studied with a monoclonal antibody recognizing endothelial cells at eagle-i...
Vasculogenesis in the early quail blastodisc as studied with a monoclonal antibody recognizing endothelial cells is an eagle-i resource of type Journal article at eagle-i Network Shared Resource Repository.
https://shared.eagle-i.net/i/00000140-d787-da34-fa61-b3d480000000
hunchback is required for suppression of abdominal identity, and for proper germband growth and segmentation in the...hunchback is required for suppression of abdominal identity, and for proper germband growth and segmentation in the...
Though all insects possess a highly conserved adult body plan, this morphological conservation belies an underlying developmental diversity that gives rise to this body plan. For example, insects are described as being `short, `intermediate or `long germband and show fundamental differences in how their body segments are generated (Davis and Patel, 2002; Krause, 1939; Sander et al., 1985). Long germband segmentation is evolutionarily derived and in this form of embryogenesis, all body segments are specified early and simultaneously during the blastoderm stage. As short and intermediate germ segmentation is found throughout the insects, whereas the long germ type is restricted to the higher insects, it is likely that a form of short or intermediate germband segmentation is evolutionarily ancestral (Davis and Patel, 2002). In this mode of segmentation, only the anterior-most segments are specified during the blastoderm stage, leaving the rest of the body plan to be specified later in ...
https://dev.biologists.org/content/131/7/1515
DSpace at KOASAS: Discs lost, a novel multi-PDZ domain protein, establishes and maintains epithelial polarityDSpace at KOASAS: Discs lost, a novel multi-PDZ domain protein, establishes and maintains epithelial polarity
Polarization of epithelial cells depends on a hierarchical process whereby specific membrane-associated proteins become targeted to specialized membrane domains. Here, we describe a novel Drosophila protein, Discs Lost (DLT), that plays a crucial role in the polarization of embryonic epithelia during cellular blastoderm formation. At subsequent stages of development, DLT interacts with the apical determinant Crumbs (CRB) and the laterally localized protein Neurexin IV (NRX IV). Mutations in dlt or double-stranded RNA interference lead to aberrant localization of CRB and NRX IV and cause a concomitant loss of epithelial cell polarity. Hence, DLT is required to establish and maintain cell polarity and participates in different molecular complexes that define apical and lateral membrane domains ...
http://koasas.kaist.ac.kr/handle/10203/73665
Drosophila Paired regulates late even-skipped expression through a composite binding site for the paired domain and the...Drosophila Paired regulates late even-skipped expression through a composite binding site for the paired domain and the...
The even-skipped (eve) pair-rule gene plays a key role in the establishment of the anterior-posterior segmental pattern of the Drosophila embryo. The continuously changing pattern of eve expression can be resolved into two phases. Early expression consists of seven broad stripes in the blastoderm embryo, while late expression, which occurs after cellularization, consists of narrow stripes with sharp anterior borders that coincide with the odd-numbered parasegment boundaries. Previous studies have shown that these two phases are controlled by separate classes of cis elements in the eve promoter. Early stripes are expressed by multiple stripe-specific elements under the control of maternal-effect genes and gap genes, while late stripes are expressed by a single regulatory element, the late element, under the control of pair-rule genes including eve itself. We report here that paired (prd), a pair-rule gene which had been considered to be below eve in the regulatory hierarchy of pair-rule genes, ...
https://dev.biologists.org/content/122/9/2697?ijkey=539e3211a80832f6248f40e2eef286e6fae91c0b&keytype2=tf_ipsecsha
BJZ 128 Callebaut 3-11.pdf - RBINS Open Access LibraryBJZ 128 Callebaut 3-11.pdf - RBINS Open Access Library
Callebaut, M., Van Nassauw, L., Harrisson, F. & Bortier, H. 1998. lmproved surface visualization of living avian blastoderm structures and neighbouring ooplasms by oocytal trypan-blue staining. Belg. J. Zool. 128(1): 3-11
http://biblio.naturalsciences.be/associated_publications/bjz/128-1/bjz_128_callebaut_3-11.pdf/view
The cell lineage of the muscles of the Drosophila head - CaltechAUTHORSThe cell lineage of the muscles of the Drosophila head - CaltechAUTHORS
Using a cell marker mutation the cell lineage of the muscles of the Drosophila head are traced out. Three sets of muscles separated by lineage restrictions are observed, even when cells are marked as early as the blastoderm stage. Each set underlies the derivatives of one of the three pairs of imaginal discs which differentiate to form the epidermis of the adult head. Clones of the homoeotic mutation engrailed (en^10) were apparently normal in the muscles of the head. The muscle clone frequency, at the blastoderm stage, in each hemisegment of the fly is similar, indicating an equal partitioning of cells during segmentation. ...
https://authors.library.caltech.edu/12969/
p120 localization during the syncytial development and | Open-ip120 localization during the syncytial development and | Open-i
p120 localization during the syncytial development and cellularization differs from that of Arm. (A-J) Syncytial blastoderm (A and B) and cellularizing embryo
https://openi.nlm.nih.gov/detailedresult.php?img=PMC2172674_200211083f8&req=4
CM 1/2 Ton x 15 ft Lodestar Electric Chain Hoist - #4244NHCM 1/2 Ton x 15 ft Lodestar Electric Chain Hoist - #4244NH
The latest generation Lodestar features quieter operation, an environmentally friendly design, easier access to key components, higher duty cycles, less maintenance and enhanced safety features The motor is both heavy-duty and efficient, designed to operate on power supplies worldwide with Standard Class F insulation and thermal motor protection Cast aluminum, lightweight housing with a sealed drive shaft and standard weatherproof gasket and seals, NEMA 3R rating meaning its suitable for outdoor use Lift wheel has five pockets for better chain engagement resulting in a smoother lift with less vibration Heavy-duty DC brake and adjustable limit switch that stops the hook at any predetermined point while lifting or lowering Hoistaloy load chain with forged steel hook chain is zinc-plated and 100% proof-tested Internal chain guide made from stamped steel keeps the load chain and lift wheel aligned during operation Fabric chain container and rigid suspension hook included in price
https://www.westechrigging.com/cm-lodestar-4244nh.html
Blastoderm - Everything2.comBlastoderm - Everything2.com
Blasto*derm (?), n. [Gr. sprout + E. derm.] Biology|Biol. The germinal membrane in an ovum, from which the embryo is developed. &a...
https://everything2.com/title/Blastoderm
Rotation Stages ΘxΘy » Imagine OpticRotation Stages ΘxΘy » Imagine Optic
These cookies are strictly necessary to provide you with services available through our website and to use some of its features.. Because these cookies are strictly necessary to deliver the website, refuseing them will have impact how our site functions. You always can block or delete cookies by changing your browser settings and force blocking all cookies on this website. But this will always prompt you to accept/refuse cookies when revisiting our site.. We fully respect if you want to refuse cookies but to avoid asking you again and again kindly allow us to store a cookie for that. You are free to opt out any time or opt in for other cookies to get a better experience. If you refuse cookies we will remove all set cookies in our domain.. We provide you with a list of stored cookies on your computer in our domain so you can check what we stored. Due to security reasons we are not able to show or modify cookies from other domains. You can check these in your browser security settings.. ...
https://www.imagine-optic.com/product/rotation-stages-thxthy/
TENM3 Gene - GeneCards | TEN3 Protein | TEN3 AntibodyTENM3 Gene - GeneCards | TEN3 Protein | TEN3 Antibody
Complete information for TENM3 gene (Protein Coding), Teneurin Transmembrane Protein 3, including: function, proteins, disorders, pathways, orthologs, and expression. GeneCards - The Human Gene Compendium
http://www.genecards.org/cgi-bin/carddisp.pl?gene=TENM3
Search Result: LodestarSearch Result: Lodestar
to explain why she returned to singing and how she chose her rather bloodsoaked repertoire.. In addition to her own recording career, Shirley Collins played an important role in music history when she accompanied legendary musicologist ...
http://soundopinions.org/topic/lodestar
Biophilia: October 2016Biophilia: October 2016
The cascade of segmentation refinement is mostly a matter of gene expression. Transcription regulators are expressed in various places along the body axis, and their combination, overlapping in some places, absent in others, dictates (through their binding to enhancers at DNA of target genes, thus activating them) a refined pattern for the next step, which consists mostly of another set of transcription regulators. The gap genes each regulate portions of the ~seven broad bands of expression, and their combinations activate the next set of pair-rule genes that are typically expressed in the same seven bands, which over time (involving mutual back and forth regulation) resolve to and help form fourteen parasegments, each of which comprise the front half of one future physical segment, and the back half of another. Lastly, a set of segment-polarity genes are activated in one-cell wide stripes to specify one or the other side of each of these fourteen parasegments, preparatory to the more ...
https://biophilic.blogspot.com/2016/10/
FishScope: Ventral hypoblast during mid-gastrulationFishScope: Ventral hypoblast during mid-gastrulation
Ventral Hypoblast movie: The animal pole is toward the top, face on view of ventral side (dorsal is on the opposite side of embryo).. Scatter labeling of cells with the flourescent probe, Bodipy-dextran, allows many individual cells to be followed through time. Cells in the ventral hypoblast appear to be spreading away from the plane of view. This is caused by their convergence toward the dorsal side which is 180 degrees away on the opposite side of the embryo. Remember, not all of the cells are labeled in the embryo; the holes that you see between the cells are filled with cells that are not labeled with the flourescent probe.. ...
http://depts.washington.edu/fishscop/Boss/pages/movie_pages/3D/venthypo/Venthypoblst.html
Budbox Pro 1.5mx1.5m Tent Kit
Complete grow tent kit including a 150mm Maxibright Tube Fan extraction systems, 2 x Loadstar 600w digital lighting kits including rope ratchet hangers and 2 timers. Budbox Pro XL 1.5mx1.5mTent- For the serious grower who demands the absolute best, lined with a highly reflective white material that reflects more of t
https://www.criticalmasssystems.co.uk/products/budboxpro15mx15mtentkit
Mom A Title Just Above Queen Laser Etched Tumbler - Piper Lou CollectionMom A Title Just Above Queen Laser Etched Tumbler - Piper Lou Collection
Proudly printed & shipped in the US. * PREMIUM Tumblers come with a SLIDER LID Included at NO EXTRA CHARGE (A $5.99 VALUE)! * DRINKS STAY COLD OR HOT: Double-walled, vacuum insulated stainless steel cups that come with a splash-proof lid will keep your drinks the temperature you want. DITCH THE DECALS: Dingy decal
https://www.piperloucollection.com/products/mom-a-title-just-above-queen-laser-etched-tumbler
AMD 070 reversible enzyme inhibition - Inhibition of protein kinase CK2 prevents the progression of glomerulonephritisAMD 070 reversible enzyme inhibition - Inhibition of protein kinase CK2 prevents the progression of glomerulonephritis
Background The longstanding canonical style of spider gastrulation posits that cell internalization occurs only at a unitary central blastopore; which the cumulus (dorsal organizer) comes from within the first deep level by cellCcell relationship. The model continues to be elaborated but substantially unchallenged by modern studies of gastrulation using the common house spider, (previously [16]) [17, 18]; examined in [19] and the wandering spider, (e.g. [20, 21]). Open in a separate windows Fig.?1 Canonical model of spider development, external view. a Blastoderm forms. b Blastoderm cells proliferate and migrate to one hemisphere to PVRL3 form a germ disc. c Primitive plate forms by internalization at a central blastopore. marks blastopore (bp). d Cumulus (c) originates in the deep layer near blastopore and migrates radially to the prospective dorso-posterior side of the germ disc. e Germ disc cells move away circumferentially from your cumulus endpoint. This movement forms the germ band; the ...
https://southpadremaps.com/tag/amd-070-reversible-enzyme-inhibition/
Lecture 21x - Messenger RNA expression patterns of two pair-rule genes even-skipped(red and fushi tarazu(black in the...Lecture 21x - Messenger RNA expression patterns of two pair-rule genes even-skipped(red and fushi tarazu(black in the...
View Notes - Lecture 21x from BIO 432 at BC. 4/25/13 Messenger RNA expression patterns of two pair-rule genes, even-skipped (red) and fushi tarazu (black) in the Drosophila blastoderm Specific
https://www.coursehero.com/file/9129494/Lecture-21x/
Dynamics expression of DmFKBP12/Calstabin during embryonic early development of Drosophila melanogaster | Cell & Bioscience |...Dynamics expression of DmFKBP12/Calstabin during embryonic early development of Drosophila melanogaster | Cell & Bioscience |...
Calcium signaling are conserved from invertebrates to vertebrates and plays critical roles in many molecular mechanisms of embryogenesis and postnatal development. As a critical component of the signaling pathway, the RyR medicated calcium-induced calcium release signaling system, has been well studied along with their regulator FK506-binding protein 12 (FKBP12/Calstabin). Lack of FKBP12 is known to result in lethal cardiac dysfunction in mouse. However, precisely how FKBP12 is regulated and effects calcium signaling in Drosophila melanogaster remains largely unknown. In this study, we identified both temporal and localization changes in expression of DmFKBP12, a translational and transcriptional regulator of Drosophila RyR (DmRyR) and FKBP12, through embryonic development. DmFKBP12 is first expressed at the syncytial blastoderm stage and undergoes increased expression during the cellular blastoderm and early gastrulation stages. At late gastrulation, DmFKBP12 expression begins to decline until it
https://cellandbioscience.biomedcentral.com/articles/10.1186/s13578-019-0270-6/figures/3
Book - The Early Embryology of the Chick 6 - Embryology
Sections of embryos of this stage show how the entoderm has spread out and become organized into a coherent layer of cells merging peripherally with the inner margin of the germ wall and overlapping it to a certain extent (Fig. 13, C, £, F)s The cavity between the yolk and the entoderm which has been called the gastroccele is now termed the primitive gut. The yolk floor of the primitive gut does not •show in sections prepared by the usual methods. The reasons for this are to be found in the relations of the embryo to the -^ yolk A^efore it is removed for sectioning^ In the entire central region of the blastoderm lie yolk is separated from the entoderm by the cavity of the primitive gut. When the embryo is removed from the yolk sphere the yolk floor of the primitive gut, not being adherent to the blastoderm, is left behind. In contrast the peripheral part of the blastoderm Ues closely applied to the yolk. Some yolk adheres to this part of the blastoderm when it is removed. This ...
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_The_Early_Embryology_of_the_Chick_6&oldid=46644
Sensillum development in the absence of cell division: the sensillum phenotype of the Drosophila mutant stringSensillum development in the absence of cell division: the sensillum phenotype of the Drosophila mutant string
We have investigated sensillum development in Drosophila embryos homozygous for mutations in the locus string (stg). In these embryos, cell division is blocked following blastoderm formation. This permits a study of the differentiative fate of undivided precursor cells, in particular those giving ri …
https://pubmed.ncbi.nlm.nih.gov/2106460/?dopt=Abstract
Publishers of academic thesis & dissertations. Free search & preview. PDF downloads. Instant access to paperback & ebook...Publishers of academic thesis & dissertations. Free search & preview. PDF downloads. Instant access to paperback & ebook...
Esta tesis revela la regulación transcripcional del gen gap giant (gt) en el embrión blastodermal de Drosophila por ingeniería inversa: un modelo matemático infiere los mecanismos subyacentes de datos cuantitativos de expresión recopilados en un fondo genético silvestre. El modelo se amolda a mRNA reportero controlado por elementos reguladores en cis (CRE) de gt. Es una herramienta potente para investigar cómo se forma el patrón a nivel molecular por los sitios de unión de factores de transcripción y permite predecir la expresión en cepas mutantes. La presente tesis esclarece la regulación diferencial de dos CRE adyacentes de gt y presenta la primera evidencia experimental de auto-activación de gt mediante mutagénesis de sus elementos reguladores. Tras la optimización de los parámetros en un fondo de tipo silvestre, el modelo predice correctamente los cambios observados en mutantes de Krüppel y tailless. Otras contribuciones reglamentarias sugeridas por el modelo son confirmadas por la
http://www.dissertation.com/abstracts/1124377
View source for Book - Developmental Anatomy 1924-17 - Embryology
Arey1924 Header}} =Chapter XVII The Study of Pig Embryos= A very young pig embryos of the primitive streak and neural fold stages are shown in Fig. 364. The closure of the neural tube and the progressive appearance of mesodermal segments are likewise illustrated in Fig. 365. The fundamental similarity of these embryos to the early chicks already studied is apparent. For a short time, succeeding stages are complicated by flexion and spiral twisting which make sections difficult for the beginner to interpret. In embryos about 6 mm. long, the twist of . [[File:Arey1924 fig364.jpg,600px]] Fig. 364. Early pig embryos (Keibel). X 20. A, Blastoderm with primitive streak and knot; B, blastoderm with primitive streak and neural groove. The body has disappeared sufficiently so that its structure may be studied to better advantage. At this time the state of development is generally comparable to that of a four day chick (Fig. 366). The fetal membranes of the pig stand somewhat intermediate between ...
https://embryology.med.unsw.edu.au/embryology/index.php?title=Book_-_Developmental_Anatomy_1924-17&action=edit&oldid=253140
loadstar Archives - NGT Newsloadstar Archives - NGT News
NGT News - Next-Gen Transportation is the webs destination for business-to-business content addressing the technologies and strategies that are driving innovation in the transportation sector ...
https://ngtnews.com/tag/loadstar
ZFIN Gene: snai1aZFIN Gene: snai1a
Exhibits NF-kappaB binding activity. Involved in ameboidal-type cell migration; dorsal/ventral pattern formation; and epithelial to mesenchymal transition. Localizes to nucleus. Is expressed in several structures, including blastodisc; germ ring; mesoderm; musculature system; and pharyngeal arch. Orthologous to human SNAI1 (snail family transcriptional repressor 1 ...
http://zfin.org/ZDB-GENE-990415-255
BiologyBiology
Next we talked about how living things are made up of tiny cells, and looked at an egg as a rare example of a cell thats big enough to see with our eyes. Luckily I had half a dozen slightly-out-of-date eggs to hand because it took the children a few goes to crack their eggs without breaking the yolk!. Before we cracked the eggs we looked at them through magnifying glasses and noted the tiny holes in the shell through which air and water pass. Then we talked about the parts of the egg and their purpose, and found the tiny white blastodisc in the yolk and the tail-like chalaza which anchors the cell, neither of which I have ever noticed before! Wed lost J to lego by the time it came to drawing the egg, but C enjoyed colouring and labelling hers, and I left Js page blank - who knows when he might decide to come back to it with a wave of enthusiasm!. ...
http://www.navigatingbyjoy.com/tag/biology/
Genetically modified food safety concernsGenetically modified food safety concerns
Earthborn Zach pockmarks it toecap borates yet. galactic and dreary Sheppard caravan his repartees Photostats hoppled hitchily. organizing coalescent that crumpling pliably? hedgier Edward enkindled her signets and elegise pompously! burly Erick peising, his toughener journalize temporized effervescently. unspoken Churchill suppress it taborers girdled frontward. cacciatore and spiritual Connie Graecised his trim or pargetting irrelatively. atrophied Ezechiel manured, her bacterise very some. denaturized Mattias slues, his legitimacy genetically engineered crops in the united states baled wig mixedly. freakish Cobb fankle her licensing acclimatizing turbidly? blastoderm genetically modified food safety concerns Kendall marshallings, his determinableness knock-ups unsteady presentably. roseless Slim agnizing his genetica molecular y biotecnologia sevilla guaranty intentionally. feracious and genette figure 3 pdf paramedic Ender keynotes his hatpins genetically modified food safety concerns filing ...
http://agblog.tk/genetically-modified-food-safety-concerns
The development in vitro of the blood of the early chick embryo | Proceedings of the Royal Society of London B: Biological...The development in vitro of the blood of the early chick embryo | Proceedings of the Royal Society of London B: Biological...
In a series of tissue cultures of fragments taken from different parts of young chick embryos, at various stages, it was found that differentiation frequently occurred, the characteristic cells of highly specialised tissues appearing in cultures in which they could not possibly have been present at explantation. The most striking differentiations were the development of red blood corpuscles, capillary vessels, nerve cells with axons and of rhythmically contracting cardiac muscle. This paper describes a simple method by which may be obtained regularly and quickly the development of very large numbers of red cells, and an account is given of the histology of the cultures. It is intended to be introductory to a physiological study, now in progress, of the conditions of hæmatopoiesis Literature. Erythropoiesis in vitro has been reported by several authors, but it has not been thoroughly investigated and, with the exceptions of the works of Slonimski (1930, a, 1931) and Shipley (1915-16), the ...
http://rspb.royalsocietypublishing.org/content/111/773/497
TENM1 teneurin transmembrane protein 1 [Homo sapiens (human)] - Gene - NCBITENM1 teneurin transmembrane protein 1 [Homo sapiens (human)] - Gene - NCBI
These reference sequences exist independently of genome builds. Explain. These reference sequences are curated independently of the genome annotation cycle, so their versions may not match the RefSeq versions in the current genome build. Identify version mismatches by comparing the version of the RefSeq in this section to the one reported in Genomic regions, transcripts, and products above. ...
https://www.ncbi.nlm.nih.gov/gene/10178
TENM1 antibodies | AntibodypediaTENM1 antibodies | Antibodypedia
The protein encoded by this gene belongs to the tenascin family and teneurin subfamily. It is expressed in the neurons and may function as a cellular signal transducer. Several alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Sep 2009] ...
https://www.antibodypedia.com/gene/482/TENM1
Remanence - Performances | JAVAUXRemanence - Performances | JAVAUX
Density in kg / m3 (indicative values) : 25 Possibility of colors : Anthracite or white Cellularization type : Closed cell, thin Hardness / softness (Shore A/00) (indicative values) : Extra flexible ...
https://www.javaux.com/en/foams-adhesives/performances/remanence/3766-pe-soft-foam-art-00265.html
Misexpression of Chick Vg1 in the Marginal Zone Induces Primitive Streak Formation - PubMedMisexpression of Chick Vg1 in the Marginal Zone Induces Primitive Streak Formation - PubMed
In the chick embryo, the primitive streak is the first axial structure to develop. The initiation of primitive streak formation in the posterior area pellucida is influenced by the adjacent posterior marginal zone (PMZ). We show here that chick Vg1 (cVg1), a member of the TGFbeta family of signallin …
https://pubmed.ncbi.nlm.nih.gov/9362470/
Chickscope 1.5: Explore: Embryology: Day 1 - The Journey Begins: The Egg Yolk
In the infertile egg, on the left, the nucleus is merely a light spot on the yolk. The egg on the right is fertilized. In the fertilized egg the ovum has fused with a sperm to begin forming an embryo. By the time the fertilized egg is laid, many cells are divided on the surface of the yolk and formed a blastoderm. Can you see the difference between the nucleus of the infertile egg and the blastoderm of the fertilized egg? Both are indicated by the blue arrow. ...
http://chickscope.beckman.uiuc.edu/explore/embryology/day01/yolk.html
Biology-Online • View topic - embryonic development in a chickBiology-Online • View topic - embryonic development in a chick
Can anyone please help me out..I just cant understand this gastrulation stage ...my books too confusing..cant understand how the hypoblast forms the yolk sack? and what exactly are area pelucidia and area opaca? cant understand primitive streak as well as hensen node....arghh...and google is not helping! any recommendations for a book or website ...
http://www.biology-online.org/biology-forum/about12983.html?hilit=Primitive%20streak
Spider network Archives - The LoadstarSpider network Archives - The Loadstar
This site uses cookies and other tracking technologies to assist with navigation and your ability to provide feedback, analyse your use of our products and services, assist with our promotional and marketing efforts, and provide content from third parties. Find out more. ...
https://theloadstar.com/tag/spider-network/
Details of Dinghy Building | Lodestar BooksDetails of Dinghy Building | Lodestar Books
Whether she is to be rowed or sailed independently, or will be the tender to a larger vessel, nothing feels or looks quite like a traditional clinker-built dinghy, done right. And those two words are the key to a boat which will truly grace the water, charm all who use or see her, and maintain her value.. In Details of Dinghy Building boatbuilder Will Stirling painstakingly describes and illustrates, in full colour, the many arcane yet vital tasks which can daunt the beginning boatbuilder. Will has been building clinker dinghies professionally for many years and has made, and learned how to avoid, all the mistakes which lie in wait for the unwary. Take advantage of his experience, and some tricks of the trade, and draw -inspiration from the many mouthwatering photographs of finished boats which punctuate the book.. If youre building a boat, this textual guide and photographic reference will pay for itself many times over in the time, frustration and embarrassment it will save you. If youre ...
https://lodestarbooks.com/product/details-of-dinghy-building/
HyMark High Spots: October 2014HyMark High Spots: October 2014
My first year, I didnt own anything. Borrowed a 1206 and 10ft. no-till drill to plant 7 acres of soybeans. Hired the spraying and harvest from a local friend. Used that income to pay for inputs for this year, when I expanded to 40 acres. Over last winter, I purchased a 7-row/18 no-till planter ($300), 12ft. Oliver disc ($400), 16ft. harrowgator ($350), White 7300 combine/13ft. grain platform ($Free), and 1973 IH Loadstar 1700 grain truck ($1,300). Overall, less invested than most guys have in a pair of tires. I had my Ford 6000 tractor to begin with, but I borrowed a 5520 JD too. Hired my spraying, but a sprayer will ABSOLUTELY be purchased this fall. Need to control resistant weeds better than my custom guy does ...
http://hymark.blogspot.com/2014/10/
Why and how genetic canalization evolves in gene regulatory networks - pdf descargar
Why and how genetic canalization evolves in gene regulatory networks. . Biblioteca virtual para leer y descargar libros, documentos, trabajos y tesis universitarias en PDF. Material universiario, documentación y tareas realizadas por universitarios en nuestra biblioteca. Para descargar gratis y para leer online.
http://libros.duhnnae.com/2017/jul4/149903901373-Why-and-how-genetic-canalization-evolves-in-gene-regulatory-networks.php
CoenocyteCoenocyte
The word syncytium in animal embryology is used to refer to the coenocytic blastoderm of invertebrates. A coenocytic cell is ... At first, the nuclei of the early embryo rapidly and synchronously divide in the "syncytial" blastoderm and then migrate ... blastoderms, i.e. early on the embryos exhibit incomplete cell division. The nuclei undergo S-phase (DNA replication) and ... the egg is called a cellular blastoderm. The pole cells - the germline anlage - are the first cells to separate fully. Certain ...
https://en.wikipedia.org/wiki/Coenocyte
Drosophila embryogenesisDrosophila embryogenesis
... cell membranes form around the nuclei of the syncytial blastoderm converting it to a cellular blastoderm. The expression ... This process sets up a gradient between the ventral and dorsal side of the blastoderm embryo with the repression or induction ... At the dorsal side of the embryo, blastoderm nuclei where this is little or no nuclear dorsal protein express zerknüllt, ... At the ventral end of the embryo, blastoderm nuclei exposed to high concentrations of dorsal protein induce the transcription ...
https://en.wikipedia.org/wiki/Drosophila_embryogenesis
Gap geneGap gene
It has been demonstrated that gap gene expression in the Drosophila blastoderm exhibit a property called as canalization, a ... "Mechanisms of gap gene expression canalization in the Drosophila blastoderm". BMC Systems Biology. 5 (118): 118. doi:10.1186/ ...
https://en.wikipedia.org/wiki/Gap_gene
Kollers sickleKoller's sickle
The blastoderm is a single layer of cells, and the hypoblast and area opaca endoderm cells lie directly below the blastoderm. ... As blastoderm cells migrate anteriorly they push primary hypoblast cells and form a secondary hypoblast known as the endoblast ... By implanting a fragment of quail Koller's sickle into a chicken blastoderm, Drs. Callebaut and Van Nueten observed the ... Callebaut, M; Van Nueten, E (1994). "Rauber's (Koller's) sickle: The early gastrulation organizer of the avian blastoderm". ...
https://en.wikipedia.org/wiki/Koller's_sickle
Magic: The Gathering deck typesMagic: The Gathering deck types
Fires, which uses Fires of Yavimaya with Saproling Burst and Blastoderm. Dredge, which uses Bazaar of Baghdad and cards with ...
https://en.wikipedia.org/wiki/Magic:_The_Gathering_deck_types
Mary Logan ReddickMary Logan Reddick
The larger question she addressed was what the developmental potential was of portions of the early chick blastoderm, when ... Reddick ML (1937). The differentiation of portions of the chick blastoderm in chorio-allantoic grafts. Thesis for Degree of the ... "The differentiation of portions of the chick blastoderm in chorio-allantoic grafts". Robert W. Woodruff Library. University of ... with a thesis studying the embryo chick blastoderm. After gaining her Masters, Reddick began teaching biology at Spelman in ...
https://en.wikipedia.org/wiki/Mary_Logan_Reddick
Dorothea RudnickDorothea Rudnick
Her dissertation was titled "Thyroid Forming Potencies of the Early Chick Blastoderm." Dr. Rudnick spent most of her academic ... Dorothea Rudnick, "Thyroid Forming Potencies of the Early Chic Blastoderm" (University of Chicago 1931). "Dorothea Rudnick" in ...
https://en.wikipedia.org/wiki/Dorothea_Rudnick
John Philip TrinkausJohn Philip Trinkaus
"Differentiation of the Junctional Complex of Surface Cells in the Developing Fundulus Blastoderm". The Journal of Cell Biology ...
https://en.wikipedia.org/wiki/John_Philip_Trinkaus
Spiny dogfishSpiny dogfish
One can determine if an egg is fertilized when the blastoderm is visible. The candle passes through the rest of the ...
https://en.wikipedia.org/wiki/Spiny_dogfish
Gap junctionGap junction
... fish blastoderm, frog embryos, rabbit ovary, re-aggregating cells, cockroach hemocyte capsules, rabbit skin, chick embryos, ... "Gap junction-mediated transfer of left-right patterning signals in the early chick blastoderm is upstream of Shh asymmetry in ... "Differentiation of the junctional complex of surface cells in the developing Fundulus blastoderm". J. Cell Biol. 48 (3): 455-72 ...
https://en.wikipedia.org/wiki/Gap_junction
ChIP-on-chipChIP-on-chip
"Transcription Factors Bind Thousands of Active and Inactive Regions in the Drosophila Blastoderm". PLOS Biology. 6 (2): e27. ...
https://en.wikipedia.org/wiki/ChIP-on-chip
CellularizationCellularization
First 13 nuclear divisions take place forming a syncytial blastoderm consisting of approximately 6000 nuclei. During the later ...
https://en.wikipedia.org/wiki/Cellularization
EpibolyEpiboly
Interior cells of the blastoderm move towards the outer cells, thus "intercalating" with each other. The blastoderm begins to ... Studies on fundulus demonstrated that the YSL is capable of undergoing epiboly even when the blastoderm has been removed, ... however, the blastoderm cannot undergo epiboly in the absence of the YSL. In zebrafish, there is a microtubule array in the ... of the blastoderm which will eventually form the embryo's three germ layers (ectoderm, mesoderm, and endoderm). The EVL, YSL, ...
https://en.wikipedia.org/wiki/Epiboly
Philip InghamPhilip Ingham
... and engrailed in the Drosophila blastoderm". Cell. 44 (6): 949-957. doi:10.1016/0092-8674(86)90018-8. PMID 3955654. S2CID ...
https://en.wikipedia.org/wiki/Philip_Ingham
HypoblastHypoblast
Area opaca is the blastoderm's peripheral part where the cells remain unseparated from the yolk. It is a white area that ... In fish, the hypoblast is the inner layer of the thickened margin of the epibolizing blastoderm in the gastrulating fish embryo ... Simultaneously, the secondary hypoblast (endoblast) cells continue to migrate anteriorly from the blastoderm's posterior ... The resulting two-layered blastoderm (epiblast and hypoblast) is joined at the marginal zone of the area opaca, and the space ...
https://en.wikipedia.org/wiki/Hypoblast
ANLNANLN
These actomyosin rings invaginate to separate all nuclei for one another in the syncytial blastoderm. Anillin has a unique ...
https://en.wikipedia.org/wiki/ANLN
Pair-rule genePair-rule gene
... and engrailed in the Drosophila blastoderm". Cell. 44 (6): 949-957. doi:10.1016/0092-8674(86)90018-8. PMID 3955654. S2CID ...
https://en.wikipedia.org/wiki/Pair-rule_gene
DecapentaplegicDecapentaplegic
At the early blastoderm stage, Dpp signaling is uniform and low along the dorsal side. A sharp signaling profile emerges at the ...
https://en.wikipedia.org/wiki/Decapentaplegic
KrüppelKrüppel
In this way the initial gradients of morphogens can lead to the establishment of a specific region within the blastoderm. It ... Krüppel is expressed in the center of the embryo during the cellular blastoderm stage of development. Its expression pattern is ... Diagram at Davidson College - a Drosophila embryo at the cellular blastoderm stage triple-labeled for three segmentation ...
https://en.wikipedia.org/wiki/Krüppel
Animal embryonic developmentAnimal embryonic development
The blastoderm now consists of three layers, an outer ectoderm, a middle mesoderm, and an inner endoderm; each has distinctive ... The blastula is usually a spherical layer of cells (the blastoderm) surrounding a fluid-filled or yolk-filled cavity (the ...
https://en.wikipedia.org/wiki/Animal_embryonic_development
The Origin of BirdsThe Origin of Birds
He presents here several figures and illustrations of the cleavage of the blastoderm in reptiles and birds. He examines in ...
https://en.wikipedia.org/wiki/The_Origin_of_Birds
TriploblastyTriploblasty
The term triploblast may refer to any egg cell in which the blastoderm splits into three layers. All bilaterians, the animals ...
https://en.wikipedia.org/wiki/Triploblasty
Regional differentiationRegional differentiation
This axis is defined by the creation of a pH difference "inside" and "outside" of the blastoderm between the subgerminal space ... the lighter yolk components will be near one end of the blastoderm and will become the future posterior. The molecular basis of ...
https://en.wikipedia.org/wiki/Regional_differentiation
Chicken as biological research modelChicken as biological research model
Distinct tissue areas were recognized that grew and gave rise to specific structures, including the blastoderm, or chick origin ...
https://en.wikipedia.org/wiki/Chicken_as_biological_research_model
BlastocoelBlastocoel
The blastoderm develops into the epiblast and hypoblast and it is between these layers that the blastocoel will form. The shape ...
https://en.wikipedia.org/wiki/Blastocoel
Masques blockMasques block
Many of the cards with Fading were quite powerful; the cards Parallax Wave, Parallax Tide, Blastoderm, Saproling Burst, and ...
https://en.wikipedia.org/wiki/Masques_block
Cell fate determinationCell fate determination
It was discovered that cellularization of the blastoderm took place either during or before the specifications of body regions ...
https://en.wikipedia.org/wiki/Cell_fate_determination
Fish developmentFish development
As the blastoderm cells undergo epiboly around the yolk the internalization of cells at the blastoderm margin start to form ... Once blastoderm cells have covered almost half of the yolk cell, thickening throughout the margin of deep cells occurs. The ... This layer forms when the cells at the vegetal pole of the blastoderm combine with the yolk cell underneath it. Later in ... The second cell population is the enveloping layer which is made of superficial cells from the blastoderm that eventually form ...
https://en.wikipedia.org/wiki/Fish_development
Spätzle (gene)Spätzle (gene)
... isoforms of the Drosophila Spätzle protein are encoded by alternatively spliced maternal mRNAs in the precellular blastoderm ...
https://en.wikipedia.org/wiki/Spätzle_(gene)
Developmental biologyDevelopmental biology
This undergoes a period of divisions to form a ball or sheet of similar cells called a blastula or blastoderm. These cell ...
https://en.wikipedia.org/wiki/Developmental_biology
Blastoderm - WikipediaBlastoderm - Wikipedia
Gastrulation follows blastoderm formation, where the tips of the blastoderm begins the formation of the ectoderm, mesoderm, and ... In chicken eggs, the blastoderm represents a flat disc after embryonic fertilization. At the edge of the blastoderm is the site ... A blastoderm (germinal disc, blastodisc) is a single layer of embryonic epithelial tissue that makes up the blastula. It ... The blastoderm is formed when the oocyte plasma membrane begins cleaving by invagination, creating multiple cells that arrange ...
https://en.wikipedia.org/wiki/Blastoderm
Table of Contents 2010 | International Journal of Zoology | HindawiTable of Contents 2010 | International Journal of Zoology | Hindawi
Mosaic and Regulation Phenomena during the Early Formation of the Chick Blastoderm. Marc Callebaut , Emmy Van Nueten , ... , ...
https://www.hindawi.com/journals/ijz/contents/year/2010/
A segmentation clock operating in blastoderm and germband stages of Tribolium development - Institut de Génomique Fonctionnelle...A segmentation clock operating in blastoderm and germband stages of Tribolium development - Institut de Génomique Fonctionnelle...
A segmentation clock operating in blastoderm and germband stages of Tribolium development. E. El-Sherif, M. Averof, and S. J ... A segmentation clock operating in blastoderm and germband stages of Tribolium development ...
https://igfl.ens-lyon.fr/publications-avant-igfl/averof-comparative-developmental-biology-and-regeneration/RN633
Mechanisms of gap gene expression canalization in the Drosophila blastoderm | BMC Systems Biology | Full TextMechanisms of gap gene expression canalization in the Drosophila blastoderm | BMC Systems Biology | Full Text
Extensive variation in early gap gene expression in the Drosophila blastoderm is reduced over time because of gap gene cross ... Gursky, V.V., Panok, L., Myasnikova, E.M. et al. Mechanisms of gap gene expression canalization in the Drosophila blastoderm. ... Extensive variation in early gap gene expression in the Drosophila blastoderm is reduced over time because of gap gene cross ... Mechanisms of gap gene expression canalization in the Drosophila blastoderm. *Vitaly V Gursky. 1, ...
https://bmcsystbiol.biomedcentral.com/articles/10.1186/1752-0509-5-118
Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). An optic and electron microscopic...Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). An optic and electron microscopic...
Llopart, F. ; Domenech Mateu, J. M. / Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). ... Dive into the research topics of Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). An ... Llopart, F., & Domenech Mateu, J. M. (1981). Induction of the neural canal in young blastoderms of chick embryos (Gallus ... Llopart, F & Domenech Mateu, JM 1981, Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus ...
https://portalrecerca.uab.cat/en/publications/induction-of-the-neural-canal-in-young-blastoderms-of-chick-embry
Search | The Embryo Project EncyclopediaSearch | The Embryo Project Encyclopedia
The Blastoderm in Chicks During Early Gastrulation. This image shows a chicken (Gallus gallus) embryo undergoing gastrulation ... At this point in time the chicken embryo is a blastoderm (shown in blue). The first magnification of the embryo shows that the ... The second rectangular magnification shows the blastoderm cross-sectioned through the primitive streak. ... blastoderm cell layers have thickened to form the primitive streak and Hensens node. The primitive streak extends from the ...
https://embryo.asu.edu/search?text=University%20College&f%5B0%5D=dc_subject_embryo%3A95&f%5B1%5D=dc_subject_embryo%3A51
Chickens mating questions | BackYard Chickens - Learn How to Raise ChickensChickens mating questions | BackYard Chickens - Learn How to Raise Chickens
There is no extra protein in a fertilized egg...and good luck removing a blastoderm from a yolk.. Here is a great video about ...
https://www.backyardchickens.com/threads/chickens-mating-questions.1278622/
Search | The Embryo Project EncyclopediaSearch | The Embryo Project Encyclopedia
The Blastoderm in Chicks During Early Gastrulation. This image shows a chicken (Gallus gallus) embryo undergoing gastrulation ... At this point in time the chicken embryo is a blastoderm (shown in blue). The first magnification of the embryo shows that the ... The second rectangular magnification shows the blastoderm cross-sectioned through the primitive streak. ... blastoderm cell layers have thickened to form the primitive streak and Hensens node. The primitive streak extends from the ...
https://embryo.asu.edu/search?text=Marine%20Biological%20Laboratory&%3Bamp%3Bf%5B0%5D=dc_subject_embryo%3A51&%3Bamp%3Bf%5B1%5D=dc_subject_embryo%3A95&%3Bf%5B0%5D=dc_subject_embryo%3A6925&f%5B0%5D=dc_description_type%3A2989&f%5B1%5D=dc_subject_embryo%3A95&f%5B2%5D=dc_subject_embryo%3A5
1999 AES Annual Meeting Abstracts - AES | American Elasmobranch Society1999 AES Annual Meeting Abstracts - AES | American Elasmobranch Society
Newly laid eggs are in the blastoderm stage. The embryonic axis of the skate is established 3 days after oviposition. Fusion of ... arresting development of its embryos at the blastoderm stage. In the summer, mating activity immediately precedes ovulation and ...
https://elasmo.org/meetings/abstracts/abst1999/
Noncontained disk | definition of noncontained disk by Medical dictionaryNoncontained disk | definition of noncontained disk by Medical dictionary
Synonym: proligerous disk; blastoderm. Hensen disk. See: Hensen, Christian Andreas Victor.. herniated disk. Rupture of the soft ...
https://medical-dictionary.thefreedictionary.com/noncontained+disk
Testoviron | Semantic ScholarTestoviron | Semantic Scholar
Testoviron is a potent inducer of chick blastoderm.. *F. Orts Llorca, J. M. Mateu ...
https://www.semanticscholar.org/topic/Testoviron/1697462
All
MTG Single Blastoderm (Jan Tomcani) [World Championship Decks 2001] $1.00 sold out ...
https://pandemoniumbooks.com/collections/all/world-championship-decks-2001
A unicellular relative of animals generates a layer of polarized cells by actomyosin-dependent cellularization | eLifeA unicellular relative of animals generates a layer of polarized cells by actomyosin-dependent cellularization | eLife
In contrast, in a model animal coenocyte, the syncytial blastoderm of the fruit fly Drosophila melanogaster, cellularization is ... This is in contrast to the role of microtubules during cellularization of the blastoderm in Drosophila, where microtubules also ... Given that these processes play a major role during cellularization of the insect blastoderm, we investigated the expression ... 2002) How one becomes many: blastoderm cellularization in Drosophila Melanogaster BioEssays 24:1012-1022. ...
https://elifesciences.org/articles/49801
Does homology provide evidence of evolutionary naturalism?Does homology provide evidence of evolutionary naturalism?
... and in birds and reptiles it is formed from the lower layer of the embryonic disc or blastoderm.31 ...
https://creation.com/does-homology-provide-evidence-of-evolutionary-naturalism
Modeling Renal Disease On the FlyModeling Renal Disease "On the Fly"
J. Mohler and E. F. Wieschaus, "Bicaudal mutations of Drosophila melanogaster: alteration of blastoderm cell fate," Cold Spring ... W. Janning, A. Lutz, and D. Wissen, "Clonal analysis of the blastoderm anlage of the Malpighian tubules in Drosophila ...
https://www.hindawi.com/journals/bmri/2018/5697436/
Expression of human Cfdp1 gene in Drosophila reveals new insights into the function of the evolutionarily conserved BCNT...Expression of human Cfdp1 gene in Drosophila reveals new insights into the function of the evolutionarily conserved BCNT...
The pUAST-Cfdp1 construct was injected in D. melanogaster pre-blastoderm embryos of genotype w1118 and transgenic flies were ...
https://www.nature.com/articles/srep25511?error=cookies_not_supported&code=83c76ba1-5365-4616-a592-a8cffb4e8a9a
The study of Priapulus caudatus reveals conserved molecular patterning underlying different gut morphogenesis in the Ecdysozoa ...The study of Priapulus caudatus reveals conserved molecular patterning underlying different gut morphogenesis in the Ecdysozoa ...
Temporal pattern of the posterior expression of Wingless in Drosophila blastoderm. Gene Expr Patterns. 2011;11:456-63. ... form the endodermal cells at a defined point of the blastoderm [10,62-67]. These cells migrate over the yolk mass, and often ... and can occur from a small posteroventral area of the blastoderm (for example, onychophorans [65,76]), or from individual cells ... delaminating from the blastoderm (for example, in some myriapods [63]). By contrast, in those marine crustaceans with ...
https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-015-0139-z
Rho1 regulates Drosophila adherens junctions independently of p120ctn | Development | The Company of BiologistsRho1 regulates Drosophila adherens junctions independently of p120ctn | Development | The Company of Biologists
We tested this by injecting blastoderm-stage embryos with dsRNA directed against the p120 coding region. p120RNAi did not ... 3M, blue arrowheads;DE-Cad accumulated apically). Second, comparison of blastoderm, extended germband, and dorsal closure-stage ... DRhoGEF2 regulates actin organization and contractility in the Drosophila blastoderm embryo. J. Cell Biol. ... Syncytial blastoderm embryos were bleach-dechorionated and injected under halocarbon oil at the posterior end with dsRNA at 5 ...
https://journals.biologists.com/dev/article/132/21/4819/43031/Rho1-regulates-Drosophila-adherens-junctions
Minisymposia - ASCB | ASCBMinisymposia - ASCB | ASCB
5:35 pm M115 Blastoderm Formation in Crickets: A Crowding Mechanism Explains Nucleus Speed, Direction, and Division Timing. S. ...
https://www.ascb.org/minisymposia/
Tufts University: The Levin Lab, Department of Biology: ResourcesTufts University: The Levin Lab, Department of Biology: Resources
We use chick embryos because their flat early blastoderm is a good model for most amniotes (including mammals) and are very ...
https://ase.tufts.edu/biology/labs/levin/resources/
Duel Decks: Garruk vs. Liliana English Regular | Magic the GatheringDuel Decks: Garruk vs. Liliana English Regular | Magic the Gathering
Selling English Regular Duel Decks: Garruk vs. Liliana Singles for Magic the Gathering
http://www.mtgmintcard.com/mtg/singles/gvl/eng-reg
Interactive Fly, DrosophilaInteractive Fly, Drosophila
The 52 bp sequence drove expression on the dorsal side of early blastoderm embryos in a pattern that matched Dpp signaling. ...
https://www.sdbonline.org/sites/fly/gene/muslsh2a.htm
Flashcards - Chapter 47Flashcards - Chapter 47
zygote, 4-cell stage, and blastoderm. * What is holoblastic cleavage and what type of species have this? ...
https://freezingblue.com/flashcards/1591/preview/chapter-47
Carl-Philipp Heisenberg: Tissue fluidization at the onset of zebrafish gastrulation
Finally, we show that this uniform PT depends on blastoderm cells undergoing meta-synchronous divisions causing random and, ... we demonstrate that the zebrafish blastoderm undergoes a genuine rigidity PT, brought about by a small reduction in adhesion- ...
https://as.nyu.edu/csmr/events/spr_2021/033121_csmr_seminar.html
ZFIN Gene: tbxtaZFIN Gene: tbxta
Is expressed in several structures, including blastoderm; germ ring; mesoderm; presumptive structure; and tail bud. Orthologous ...
https://www.zfin.org/ZDB-GENE-980526-437
Different mechanisms initiate and maintain wingless expression in the Drosophila wing hinge | Development | The Company of...Different mechanisms initiate and maintain wingless expression in the Drosophila wing hinge | Development | The Company of...
Blastoderm segmentation. In The Development of Drosophila melanogaster, Vol. 1 (ed. M. Bate and A. Martínez-Arias), pp. 467- ...
https://journals.biologists.com/dev/article/129/17/3995/17815/Different-mechanisms-initiate-and-maintain?searchresult=1
Nonparametric identification of regulatory interactions from spatial and temporal gene expression dataNonparametric identification of regulatory interactions from spatial and temporal gene expression data
We identify an ODE model for eve mRNA pattern formation in the Drosophila melanogaster blastoderm and show that this reproduces ... We identify an ODE model for eve mRNA pattern formation in the Drosophila melanogaster blastoderm and show that this reproduces ...
https://escholarship.org/uc/item/51h3027r
SMART: SAM domain annotationSMART: SAM domain annotation
Translation of hunchback(mat) (hb[mat]) mRNA must be repressed in the posterior of the pre-blastoderm Drosophila embryo to ...
https://smart.embl.de/smart/do_annotation.pl?DOMAIN=SAM&START=926&END=993&E_VALUE=4.74e-19&TYPE=SMART&BLAST=GSGNGDLTVGDWLDSIRMGRYRDHFAAGGYSSLGMVLRMNAQDVRALGITLMGHQKKILGSIQTMRAQ
Ranking] Gnc Weight Loss Products Dr Oz New Weight Loss Supplement -> The Southern...Ranking] Gnc Weight Loss Products Dr Oz New Weight Loss Supplement -> The Southern...
... is not a onetime artifact This is called dr oz new weight loss supplement it is also called Xiantian The embryonic blastoderm ...
https://southerntimesafrica.com/supplement-2ZBVkFRJ/dr-oz-new-weight-loss/supplement-pyhIMlba/
DrosophilaSyncytial blastodermChick BlastodermEmbryoCellular blastodermZebrafish blastodermEctodermEmbryonicCellularizationCellsYolkFocal planePrimitive streakNeuralStageConceptSyncytialStagesSegmentationChickenTissueCellWhiteEntireRegions
Drosophila10
  • Extensive variation in early gap gene expression in the Drosophila blastoderm is reduced over time because of gap gene cross regulation. (biomedcentral.com)
  • We identify an ODE model for eve mRNA pattern formation in the Drosophila melanogaster blastoderm and show that this reproduces the experimental patterns well. (escholarship.org)
  • Activation of posterior gap gene expression in the Drosophila blastoderm. (mpg.de)
  • A two-step mode of stripe formation in the Drosophila blastoderm requires interactions among primary pair rule genes. (mpg.de)
  • In Drosophila aktiviert ein Gradient des bicoid-Proteins die Transkription von hunchback im vorderen Blastoderm. (uni-goettingen.de)
  • Reporterexpression im vorderen Blastoderm von transgenen Drosophila-Embryonen wurde nur für solche Promotoren beobachtet, die aus einer Fliegenart mit einem bicoid-Ortholog stammten. (uni-goettingen.de)
  • In Drosophila, a gradient of bicoid protein activates the transcription of hunchback in the anterior blastoderm and thereby initiates patterning of the thorax. (uni-goettingen.de)
  • Reporter expression in the anterior blastoderm of transgenic Drosophila was recorded only when the promoter was taken from a species with a bicoid orthologue. (uni-goettingen.de)
  • Canalization of Gene Expression and Domain Shifts in the Drosophila Blastoderm by Dynamical Attractors. (dagstuhl.de)
  • Ventral furrow formation is the first large-scale movement in the Drosophila cellular blastoderm which involves the co-ordinated shape change of cells, and as such is an ideal system to use as a proof of principle for simulation methods to study the mechanics of morphogenesis. (upc.edu)
Syncytial blastoderm4
  • Our focus is the anterior portion of the syncytial blastoderm of Drosphila where the expression domains of gap genes are partially overlapping. (fapesp.br)
  • Concurrent with the mitotic events of the syncytial blastoderm period, the spectrin caps elongate at interphase and prophase, and divide as metaphase and anaphase progress. (rupress.org)
  • Nuclear speed and cycle length co-vary with local density during syncytial blastoderm. (extavourlab.com)
  • Seth and Taro' s preprint titled " Local density determines nuclear movements during syncytial blastoderm formation in a cricket " has been posted to bioRxiv ! (extavourlab.com)
Chick Blastoderm3
  • Testoviron is a potent inducer of chick blastoderm. (semanticscholar.org)
  • Aspirin (acetylsalicyclic acid) was dissolved either in normal saline or in phosphate buffer and was used in two doses to find out whether teratogenic potential of aspirin in chick blastoderm model is due to its acidic property or due to drug action. (who.int)
  • Bryo liver cells and in the erythroid cell precursors of the chick blastoderm. (nwbedliners.com)
Embryo6
  • At this point in time the chicken embryo is a blastoderm (shown in blue). (asu.edu)
  • The first magnification of the embryo shows that the blastoderm cell layers have thickened to form the primitive streak and Hensen's node. (asu.edu)
  • In this project, we aim to establish a 3D co-culture between the blastoderm of the zebrafish embryo and the MDA-MB-231 triple-negative breast cancer cells. (fapesp.br)
  • All cells in the embryo divide, however, and the researchers observed that only a very specific region of the tissue, the central region of the blastoderm, became fluid. (ista.ac.at)
  • When the fluidity transition goes wrong - either because the researchers stopped Wnt signaling so that all areas of the blastoderm become fluid, or because they inhibited fluidization in the entire blastoderm - doming is impaired and the embryo progresses more slowly during early development. (ista.ac.at)
  • Whether these divided into the balance between the Buy Diazepam In Brazil other salts anterior spinal artery, the effects of fig. Older embryo appear to prevent Buy Diazepam In Brazil the eggs contain a blastoderm shapes of hydatiform degeneration. (solo-predictions.com)
Cellular blastoderm1
  • This coordinated cellularization results in the formation of a single layer of polarized epithelial tissue, also known as cellular blastoderm ( Mazumdar and Mazumdar, 2002 ). (elifesciences.org)
Zebrafish blastoderm1
  • By using percolation theory, combined with directly monitoring dynamic changes in tissue rheology and cell contact mechanics, we demonstrate that the zebrafish blastoderm undergoes a genuine rigidity PT, brought about by a small reduction in adhesion-dependent cell connectivity below a critical value. (nyu.edu)
Ectoderm2
  • Gastrulation follows blastoderm formation, where the tips of the blastoderm begins the formation of the ectoderm, mesoderm, and endoderm. (wikipedia.org)
  • In the first 2-3 days the early embryonic germ layers (ectoderm, mesoderm, and endoderm) in the blastoderm are just few and so oxygen can be obtained easily. (lawrenceperegrines.com)
Embryonic4
  • A blastoderm (germinal disc, blastodisc) is a single layer of embryonic epithelial tissue that makes up the blastula. (wikipedia.org)
  • In chicken eggs, the blastoderm represents a flat disc after embryonic fertilization. (wikipedia.org)
  • Only the lineages of cells in the blastoderm of the beetle, which are at the border of the embryonic and extra embryonic tissues will be used for the evaluation of the detection, segmentation, and tracking accuracy. (celltrackingchallenge.net)
  • The invention relates to a process by which avian blastoderm cells are grown on a mouse fibroblast feeder cell layer in a medium containing a leukemia inhibitory factor, such that undifferentiated avian cells expressing an embryonic stem cell phenotype are produced. (cellmedicine.com)
Cellularization1
  • We applied Illumina sequencing to total RNA preparations of 8-10 hours old embryos of C. capitata, This developmental window corresponds to the blastoderm cellularization stage. (sciencecentral.in)
Cells10
  • The blastoderm is formed when the oocyte plasma membrane begins cleaving by invagination, creating multiple cells that arrange themselves into an outer sleeve to the blastocoel. (wikipedia.org)
  • At the edge of the blastoderm is the site of active migration by most cells. (wikipedia.org)
  • Finally, we show that this uniform PT depends on blastoderm cells undergoing meta-synchronous divisions causing random and, consequently, uniform changes in cell connectivity. (nyu.edu)
  • At a specific region below the equator the blastoderm cells assume an elongated bottle like shape. (brainkart.com)
  • The layer of cells is called BLASTODERM. (uams.edu)
  • The blastula is usually a spherical layer of cells (the blastoderm) surrounding a fluid-filled or yolk-filled cavity (the blastocoel). (umn.edu)
  • The researchers have shown how mitochondria move about in the cells using the cytoskeleton and help in formation of different cells from the blastoderm. (researchmatters.in)
  • From this frequency of mosaicism we estimated the number of functional primordial germ cells to be betwen 3 and 6 cells at the blastoderm stage. (princeton.edu)
  • Further disclosed are methods by which avian cells are collected from an avian blastoderm prior to the formation of the primitive streak, after which the avian cells are deposited in contact with a mouse fibroblast feeder cell layer and grown in the presence of a leukemia inhibitory factor in a differentiation-inhibiting amount for a time sufficient to produce a sustained avian cell culture. (cellmedicine.com)
  • The method comprises collecting avian cells from an avian blastoderm prior to formation of the primitive streak, then depositing the avian cells in contact with a mouse fibroblast feeder cell layer, and then growing the avian cells on the mouse fibroblast feeder cell layer in the presence of a media containing leukemia inhibitory factor in a differentiation-inhibiting amount for a time sufficient to produce a sustained avian cell culture. (cellmedicine.com)
Yolk2
  • At the very beginning of zebrafish development, a tissue layer, the so-called blastoderm, spreads over the yolk. (ista.ac.at)
  • If you want to know if your egg has been fertilized, crack it and look for the blastoderm - a white spot on the yolk, or maybe even blood spots. (howtosearch.com)
Focal plane1
  • The focal plane is deep within the blastoderm. (ucsd.edu)
Primitive streak1
  • The second rectangular magnification shows the blastoderm cross-sectioned through the primitive streak. (asu.edu)
Neural2
  • Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). (uab.cat)
  • Dive into the research topics of 'Induction of the neural canal in young blastoderms of chick embryos (Gallus domesticus). (uab.cat)
Stage1
Concept1
  • The very sudden transition from viscous to fluid in the blastoderm resembles a well-known concept from physics, the phase transition. (ista.ac.at)
Syncytial2
  • We observed a dramatic decrease of classification performance when the training and testing samples were derived from two different developmental stages, the nuclear divisions of the syncytial blastoderm and the cell divisions during gastrulation. (biomedcentral.com)
  • Nuclear speed and cycle length co-vary with local density during syncytial blastoderm formation in a cricket. (extavourlab.com)
Stages1
  • Differentiated world to the source of the malware activation in the ideas of form and connection and in blastoderm and undergraduate stages. (al-huda.com)
Segmentation1
  • What is more unusual is when this segmentation leads to the formation of a blastoderm, which is extremely rare, and it continues to the production of embryonic rudiments affecting the form of fetal organs more or less recognizable. (jasoncolavito.com)
Chicken1
  • After chicken egg fertilizing, it started to form a zygote which is known as blastoderm. (modernfarmertips.com)
Tissue1
  • By using a combination of theory and experiments, we show that epithelial surface cells not only trigger blastoderm expansion by reducing tissue surface tension, but also drive blastoderm thinning by inducing tissue contraction through radial deep cell intercalations. (unige.ch)
Cell2
  • The term triploblast may refer to any egg cell in which the blastoderm splits into three layers. (comicsanscancer.com)
  • Described herein are cultured avian embryonic stem cells that have been obtained by growing avian blastoderm cells on a mouse fibroblast feeder cell layer in a medium containing leukemia inhibitory factor. (cellmedicine.com)
White1
  • is that chalones is while halones is (biology) alternating transparent and opaque white rings which are seen outside the blastoderm, on the surface of the developing egg of the hen and other birds. (wikidiff.com)
Entire1
Regions1
  • offer sieving iPhone with 338 publications by working blastoderm or Enjoy EM Protein Misfolding Diseases: regions and Protocols( Methods in Molecular Biology). (swcomsvc.com)
Search | The Embryo Project Encyclopedia
Search | The Embryo Project Encyclopedia (embryo.asu.edu)
Chickens mating questions | BackYard Chickens - Learn How to Raise Chickens
Chickens mating questions | BackYard Chickens - Learn How to Raise Chickens (backyardchickens.com)
All
All (pandemoniumbooks.com)
A unicellular relative of animals generates a layer of polarized cells by actomyosin-dependent cellularization | eLife
A unicellular relative of animals generates a layer of polarized cells by actomyosin-dependent cellularization | eLife (elifesciences.org)
The study of Priapulus caudatus reveals conserved molecular patterning underlying different gut morphogenesis in the Ecdysozoa ...
The study of Priapulus caudatus reveals conserved molecular patterning underlying different gut morphogenesis in the Ecdysozoa ... (bmcbiol.biomedcentral.com)
Wenn Fische flüssig werden: VBIO
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Flashcards - Chapter 47
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Nonparametric identification of regulatory interactions from spatial and temporal gene expression data
Nonparametric identification of regulatory interactions from spatial and temporal gene expression data (escholarship.org)
SMART: SAM domain annotation
SMART: SAM domain annotation (smart.embl.de)
Lilianna Solnica-Krezel - Research output - Research Profiles at Washington University School of Medicine
Lilianna Solnica-Krezel - Research output - Research Profiles at Washington University School of Medicine (profiles.wustl.edu)
Three-tier regulation of cell number plasticity by neurotrophins and Tolls in Drosophila | Journal of Cell Biology |...
Three-tier regulation of cell number plasticity by neurotrophins and Tolls in Drosophila | Journal of Cell Biology |... (rupress.org)
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Publikationen | Max-Planck-Institut für Multidisziplinäre Naturwissenschaften
Publikationen | Max-Planck-Institut für Multidisziplinäre Naturwissenschaften (mpinat.mpg.de)
Abu Dhabi Campus - Research output - NYU Scholars
Abu Dhabi Campus - Research output - NYU Scholars (nyuscholars.nyu.edu)
Eggology (Grades 3-5)
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Cell cycle phase classification in 3D in vivo microscopy of Drosophila embryogenesis | BMC Bioinformatics | Full Text
Cell cycle phase classification in 3D in vivo microscopy of Drosophila embryogenesis | BMC Bioinformatics | Full Text (bmcbioinformatics.biomedcentral.com)
HotSauceGames.com - Buy, Sell and Trade. Collectible Card Games and more.
HotSauceGames.com - Buy, Sell and Trade. Collectible Card Games and more. (hotsaucegames.com)
Differential regulation of the chick dorsal thoracic dermal progenitors from the medial dermomyotome | Development | The...
Differential regulation of the chick dorsal thoracic dermal progenitors from the medial dermomyotome | Development | The... (journals.biologists.com)
Drosophila neurotactin, a surface glycoprotein with homology to serine esterases, is dynamically expressed during embryogenesis...
Drosophila neurotactin, a surface glycoprotein with homology to serine esterases, is dynamically expressed during embryogenesis... (mayoclinic.pure.elsevier.com)
Joshua William Shaevitz - Research output - Princeton University
Joshua William Shaevitz - Research output - Princeton University (collaborate.princeton.edu)
How Do Chickens Fertilize Eggs: The Real Truth!
How Do Chickens Fertilize Eggs: The Real Truth! (modernfarmertips.com)
Effects of ectopic expression of caudal during Drosophila development<...
Effects of ectopic expression of caudal during Drosophila development<... (scholars.mssm.edu)
Blog - Adelaide Chicken Sitting Service
Blog - Adelaide Chicken Sitting Service (adelaidechickensittingservice.com)
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RX PROGRAM WILD HAIR SHAFT AMPOULE - Centro de Estetica Alexandre (centrodeesteticaalexandre.com)
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E-League Deck Clinic (mtg.icequake.net)
Trace & Learn About 650-793-70## Before We Remove The Info
Trace & Learn About 650-793-70## Before We Remove The Info (musicastorrent.com)
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Extavour Lab | Publications (extavourlab.com)
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WikiGenes - sim - single-minded (wikigenes.org)