Phylum in the domain Eukarya, comprised of animals either with fully developed backbones (VERTEBRATES), or those with notochords only during some developmental stage (CHORDATA, NONVERTEBRATE).
A portion of the animal phylum Chordata comprised of the subphyla CEPHALOCHORDATA; UROCHORDATA, and HYPEROTRETI, but not including the Vertebrata (VERTEBRATES). It includes nonvertebrate animals having a NOTOCHORD during some developmental stage.
A subphylum of chordates intermediate between the invertebrates and the true vertebrates. It includes the Ascidians.
The relationships of groups of organisms as reflected by their genetic makeup.
The process of cumulative change at the level of DNA; RNA; and PROTEINS, over successive generations.
Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories.

ROLE OF THE GAMETE MEMBRANES IN FERTILIZATION IN SACCOGLOSSUS KOWALEVSKII (ENTEROPNEUSTA). I. THE ACROSOMAL REGION AND ITS CHANGES IN EARLY STAGES OF FERTILIZATION. (1/153)

Previous electron microscope studies of sperm-egg association in the annelid Hydroides revealed novel aspects with respect to the acrosomal region. To determine whether these aspects were unique, a comparable study was made of a species belonging to a widely separated phylum, Hemichordata. Osmium tetroxide-fixed polyspermic material of the enteropneust, Saccoglossus, was used. The acrosomal region includes the membrane-bounded acrosome, with its large acrosomal granule and shallow adnuclear invagination, and the periacrosomal material which surrounds the acrosome except at the apex; here, the acrosomal membrane lies very close to the enclosing sperm plasma membrane. After reaching the egg envelope, the spermatozoon is activated and undergoes a series of changes: the apex dehisces and around the resulting orifice the acrosomal and sperm plasma membranes form a continuous mosaic membrane. The acrosomal granule disappears. Within 7 seconds the invagination becomes the acrosomal tubule, spans the egg envelopes, and meets the egg plasma membrane. The rest of the acrosomal vesicle everts. The periacrosomal mass changes profoundly: part becomes a fibrous core (possibly equivalent to a perforatorium); part remains as a peripheral ring. The basic pattern of structure and sperm-egg association in Saccoglossus is the same as in Hydroides. Previous evidence from four other phyla as interpreted here also indicates conformity to this pattern. The major role of the acrosome is apparently to deliver the sperm plasma membrane to the egg plasma membrane.  (+info)

ROLE OF THE GAMETE MEMBRANES IN FERTILIZATION IN SACCOGLOSSUS KOWALEVSKII (ENTEROPNEUSTA). II. ZYGOTE FORMATION BY GAMETE MEMBRANE FUSION. (2/153)

An earlier paper showed that in Saccoglossus the acrosomal tubule makes contact with the egg plasma membrane. The present paper includes evidence that the sperm and egg plasma membranes fuse to establish the single continuous zygote membrane which, consequently, is a mosaic. Contrary to the general hypothesis of Tyler, pinocytosis or phagocytosis plays no role in zygote formation. Contact between the gametes is actually between two newly exposed surfaces: in the spermatozoon, the surface was formerly the interior of the acrosomal vesicle; in the egg, it was membrane previously covered by the egg envelopes. The concept that all the events of fertilization are mediated by a fertilizin-antifertilizin reaction seems an oversimplification of events actually observed: rather, the evidence indicates that a series of specific biochemical interactions probably would be involved. Gamete membrane fusion permits sperm periacrosomal material to meet the egg cytoplasm; if an activating substance exists in the spermatozoon it probably is periacrosomal rather than acrosomal in origin. The contents of the acrosome are expended in the process of delivering the sperm plasma membrane to the egg plasma membrane. After these membranes coalesce, the sperm nucleus and other internal sperm structures move into the egg cytoplasm.  (+info)

AN UNUSUAL CONFIGURATION OF THE GOLGI COMPLEX IN PIGMENT-PRODUCING "TEST" CELLS OF THE OVARY OF THE TUNICATE, STYELA. (3/153)

The test cell in the ovary of the tunicate Styela contains a large and robust Golgi complex which demonstrates a regional structural differentiation. In one of the regions, branching of the lamellae occurs resulting in a honeycomb or lattice-type arrangement. Small, dense granules or homogeneous material of moderate density may be present within certain of the Golgi cisternae. The close association, or continuity in some cases, between elements of the Golgi complex and immature forms of pigment suggests that the Golgi complex in these cells is involved in pigment formation. These relationships are shown and discussed in terms of possible functional significance.  (+info)

A CYTOCHEMICAL STUDY OF CYTOPLASMIC BASIC PROTEINS IN THE ASCIDIAN OOCYTE. (4/153)

The cytoplasm of young oocytes of the ascidians contains high concentrations of proteins which are stainable with alkaline fast green at pH 8.1 and above. These proteins cannot be stained even with acid dyes at low pH unless RNA is removed. Deamination and formalin blockage of amino groups is incapable of destroying the net positive charge on these protein molecules in the presence of RNA, but these treatments destroy the charge if RNA is removed. It is therefore concluded that basic proteins and RNA exist as a nucleoprotein complex in the ribosomes of these young oocytes. The detectable RNA of the mature oocytes and unfertilized eggs shows no evidence of being associated with basic proteins.  (+info)

Amphioxus and ascidian Dmbx homeobox genes give clues to the vertebrate origins of midbrain development. (5/153)

The ancestral chordate neural tube had a tripartite structure, comprising anterior, midbrain-hindbrain boundary (MHB) and posterior regions. The most anterior region encompasses both forebrain and midbrain in vertebrates. It is not clear when or how the distinction between these two functionally and developmentally distinct regions arose in evolution. Recently, we reported a mouse PRD-class homeobox gene, Dmbx1, expressed in the presumptive midbrain at early developmental stages, and the hindbrain at later stages, with exclusion from the MHB. This gene provides a route to investigate the evolution of midbrain development. We report the cloning, genomic structure, phylogeny and embryonic expression of Dmbx genes from amphioxus and from Ciona, representing the two most closely related lineages to the vertebrates. Our analyses show that Dmbx genes form a distinct, ancient, homeobox gene family, with highly conserved sequence and genomic organisation, albeit more divergent in Ciona. In amphioxus, no Dmbx expression is observed in the neural tube, supporting previous arguments that the MHB equivalent region has been secondarily modified in evolution. In Ciona, the CiDmbx gene is detected in neural cells caudal to Pax2/5/8-positive cells (MHB homologue), in the Hox-positive region, but, interestingly, not in any cells rostral to them. These results suggest that a midbrain homologue is missing in Ciona, and argue that midbrain development is a novelty that evolved specifically on the vertebrate lineage. We discuss the evolution of midbrain development in relation to the ancestry of the tripartite neural ground plan and the origin of the MHB organiser.  (+info)

Retroelement dynamics and a novel type of chordate retrovirus-like element in the miniature genome of the tunicate Oikopleura dioica. (6/153)

Retrotransposable elements have played an important role in shaping eukaryotic DNA, and their activity and turnover rate directly influence the size of genomes. With approximately 15,000 genes within 65-75 megabases, the marine tunicate Oikopleura dioica, a nonvertebrate chordate, has the smallest and most compact genome ever found in animals. Consistent with a massive elimination of retroelements, only one apparently novel clade of non-long terminal repeat (non-LTR) retrotransposons was detected within 41 megabases of nonredundant genomic sequences. In contrast, at least six clades of non-LTR elements were identified in the less compact genome of the tunicate Ciona intestinalis. Unexpectedly, Ty3/gypsy-related Tor LTR retrotransposons presented an astonishing level of diversity in O. dioica. They were generally poorly or apparently not corrupted, indicating recent activity. Both Tor3 and Tor4b families bore an envelope-like open reading frame, suggesting possible horizontal acquisition through infection. The Tor4b envelope-like gene might have been obtained from a paramyxovirus (RNA virus). Tor3 and Tor4b are phylogenetically clearly distinct from vertebrate retroviruses (Retroviridae) and are more reminiscent of certain insect and plant sequences. Tor elements potentially represent a so far unknown, ancient type of infectious retroelement in chordates. Their distribution and transmission dynamics in tunicates and other chordates deserve further study.  (+info)

Bayesian inference of the metazoan phylogeny; a combined molecular and morphological approach. (7/153)

Metazoan phylogeny remains one of evolutionary biology's major unsolved problems. Molecular and morphological data, as well as different analytical approaches, have produced highly conflicting results due to homoplasy resulting from more than 570 million years of evolution. To date, parsimony has been the only feasible combined approach but is highly sensitive to long-branch attraction. Recent development of stochastic models for discrete morphological characters and computationally efficient methods for Bayesian inference has enabled combined molecular and morphological data analysis with rigorous statistical approaches less prone to such inconsistencies. We present the first statistically founded analysis of a metazoan data set based on a combination of morphological and molecular data and compare the results with a traditional parsimony analysis. Interestingly, the Bayesian analyses demonstrate a high degree of congruence between morphological and molecular data, and both data sets contribute to the result of the combined analysis. Additionally, they resolve several irregularities obtained in previous studies and show high credibility values for controversial groups such as the ecdysozoans and lophotrochozoans. Parsimony, on the contrary, shows conflicting results, with morphology being congruent to the Bayesian results and the molecular data set producing peculiarities that are largely reflected in the combined analysis.  (+info)

Evolutionary relationships of Aurora kinases: implications for model organism studies and the development of anti-cancer drugs. (8/153)

BACKGROUND: As key regulators of mitotic chromosome segregation, the Aurora family of serine/threonine kinases play an important role in cell division. Abnormalities in Aurora kinases have been strongly linked with cancer, which has lead to the recent development of new classes of anti-cancer drugs that specifically target the ATP-binding domain of these kinases. From an evolutionary perspective, the species distribution of the Aurora kinase family is complex. Mammals uniquely have three Aurora kinases, Aurora-A, Aurora-B, and Aurora-C, while for other metazoans, including the frog, fruitfly and nematode, only Aurora-A and Aurora-B kinases are known. The fungi have a single Aurora-like homolog. Based on the tacit assumption of orthology to human counterparts, model organism studies have been central to the functional characterization of Aurora kinases. However, the ortholog and paralog relationships of these kinases across various species have not been rigorously examined. Here, we present comprehensive evolutionary analyses of the Aurora kinase family. RESULTS: Phylogenetic trees suggest that all three vertebrate Auroras evolved from a single urochordate ancestor. Specifically, Aurora-A is an orthologous lineage in cold-blooded vertebrates and mammals, while structurally similar Aurora-B and Aurora-C evolved more recently in mammals from a duplication of an ancestral Aurora-B/C gene found in cold-blooded vertebrates. All so-called Aurora-A and Aurora-B kinases of non-chordates are ancestral to the clade of chordate Auroras and, therefore, are not strictly orthologous to vertebrate counterparts. Comparisons of human Aurora-B and Aurora-C sequences to the resolved 3D structure of human Aurora-A lends further support to the evolutionary scenario that vertebrate Aurora-B and Aurora-C are closely related paralogs. Of the 26 residues lining the ATP-binding active site, only three were variant and all were specific to Aurora-A. CONCLUSIONS: In this study, we found that invertebrate Aurora-A and Aurora-B kinases are highly divergent protein families from their chordate counterparts. Furthermore, while the Aurora-A family is ubiquitous among all vertebrates, the Aurora-B and Aurora-C families in humans arose from a gene duplication event in mammals. These findings show the importance of understanding evolutionary relationships in the interpretation and transference of knowledge from studies of model organism systems to human cellular biology. In addition, given the important role of Aurora kinases in cancer, evolutionary analysis and comparisons of ATP-binding domains suggest a rationale for designing dual action anti-tumor drugs that inhibit both Aurora-B and Aurora-C kinases.  (+info)

Definition of phylum chordata in the Definitions.net dictionary. Meaning of phylum chordata. What does phylum chordata mean? Information and translations of phylum chordata in the most comprehensive dictionary definitions resource on the web.
Cover: In their study, A. E. McDonald, G. C. Vanlerberghe and J. F. Staples (pp. 2627−2634) discovered that the electron transport chain protein alternative oxidase (AOX), which confers cyanide-resistant mitochondrial respiration, is widespread in the animal kingdom. AOX is found in species such as (from top left clockwise): the echinoderm Strongylocentrotus purpuratus (photo credit: Dr Louise Page), the hemichordate Saccoglossus kowalevskii (photo credit: Dr Chris Cameron), and the molluscs Mytilus californianus (photo credit: Dr Rich Palmer) and Lymnaea stagnalis (photo credit: Dr Louise Page). ...
100314397 Strongylocentrotus purpuratus , 100499018 Ciona intestinalis , 100526419 Saccoglossus kowalevskii , 102464115 Gorilla gorilla , 102466503 Sarcophilus harrisii , 102466558 Cricetulus griseus , 104795867 Capra hircus ...
Signal transduction pathways mediated by G protein-coupled receptors (GPCRs) and their intracellular coupling partners, the heterotrimeric G proteins, are crucial for several physiological functions in eukaryotes, including humans. This thesis describes a broad genomic survey and extensive comparative phylogenetic analysis of GPCR and G protein families from a wide selection of eukaryotes. A robust mining of GPCR families in fungal genomes (Paper I) provides the first evidence that homologs of the mammalian families of GPCRs, including Rhodopsin, Adhesion, Glutamate and Frizzled are present in Fungi. These findings further support the hypothesis that all main GPCR families share a common origin. Moreover, we clarified the evolutionary hierarchy by showing for the first time that Rhodopsin family members are found outside metazoan lineages. We also characterized the GPCR superfamily in two important model organisms (Amphimedon queenslandica and Saccoglossus kowalevskii) that belong to different ...
Alignment of the amino acid sequences of MSP-130 and isotig 00281. Sk: Saccoglossus kowalevskii (NCBI Acc. No. XP_002739468.1); Sp: Strongylocentrotus purpuratu
President and Scientific Director, Ontario Institute for Cancer Research and Director, P3G (Public Population Project in Genomics)President and Scientific Director, Ontario Institute for Cancer Research Scientific Director, P3GDr. Thomas J. Hudson is president and scientific director of the Ontario Institute for Cancer Research. He is implementing the institutes strategic plan, working with cancer research institutions across Ontario to leverage existing strengths. The plan focuses on prevention, early diagnosis, cancer targets and new therapeutics. Its innovation platforms include imaging and interventions, bio-repositories and pathology, genomics and high-throughput screening, and informatics and biocomputing. Dr. Hudson is recruiting more than 50 internationally recognized principal investigators.Dr. Hudson was the founder and Director of the McGill University and Genome Quebec Innovation Centre and Assistant-Director of the Whitehead/MIT Center for Genome Research. Dr. Hudson is ...
1. Hedges SB. The origin and evolution of model organism. Nature Reviews Genetics. 2003 ;3:838-849 2. Winchell CJ, Sullivan J, Cameron CB. et al. Evaluating hypotheses of deuterostome phylogeny and chordate evolution with new LSU and SSU ribosomal DNA data. Mol Biol Evol. 2002 ;19:762-776 3. Brusca RC, Brusca GJ. Invertebrates. Sunderland, Massachusetts: Sinauer. 1990 4. Abouheif E, Zardoya R, Meyer A. Limitations of metazoans 18S rRNA sequence data: implications for reconstructiong a phylogeny the animal kingdom and inferring the reality of the Cambrian explosion. J Mol Evol. 1998 ;47:394-405 5. Takezaki N, Figueroa F, Zaleska-Rutczynska Z. et al. Molecular phylogeny of early vertebrates: Monophyly of the Agnathans as revealed by sequences of 35 genes. Mol Biol Evol. 2003 ;20:287-292 6. Jollie MJ. The origin of chordates. Acta Zool. 1973 ;54:81-100 7. Philippe H, Lartillot N, Brinkmann H. Multigene analyses of bilaterian animals corroborate the monophyly of Ecdysozoa, Lophotrochozoa and ...
A draft of the complete human proteome has been available in UniProtKB/Swiss-Prot since 2008 and one of the current priorities of the Chordata protein annotation project is to improve the quality of human sequences provided.. See: What is the human complete proteome?. To this aim, we are updating sequences which show discrepancies with those predicted from the genome sequence. Dubious isoforms, sequences based on experimental artefacts and protein products derived from erroneous gene model predictions are also revisited. This work is in part done in collaboration with the Hinxton Sequence Forum (HSF), which allows active exchange between UniProt, HAVANA, Ensembl and HGNC groups, as well as with RefSeq database. UniProt is a member of the Consensus CDS project and we are in the process of reviewing our records to support convergence towards a standard set of protein annotation.. We also continuously update human entries with functional annotation, including novel structural, post-translational ...
The phylum chordata is found in the animal kingdom. This contains all of the animals that have a rod-like structure used to give them support. In most cases this is the spine or backbone. The common name for members of chordata is vertebrates, and those that do not belong to the phylum but are within the animal kingdom are known as invertebrates. Invertebrates can however have an external skeleton, for example crabs. Within chordata there are five classes of animals. These are fish, amphibians, reptiles, birds and mammals. We can tell the difference through three dividing factors: ...
Conway Morris and Caron (2012) have recently published an account of virtually all the available information on Pikaia gracilens, a well-known Cambrian fossil and supposed basal chordate, and propose on this basis some new ideas about Pikaias anatomy and evolutionary significance. Chief among its chordate-like features are the putative myomeres, a regular series of vertical bands that extends the length of the body. These differ from the myomeres of living chordates in that boundaries between them (the myosepta) are gently curved, with minimal overlap, whereas amphioxus and vertebrates have strongly overlapping V- and W-shaped myomeres. The implication, on biomechanical grounds, is that myomeres in Pikaia exerted much less tension on the myosepta, so the animal would have been incapable of swimming as rapidly as living chordates operating in the fast-twitch mode used for escape and attack. Pikaia either lacked the fast-twitch fibers necessary for such speeds, having instead only slow-twitch fibers, or
നട്ടെല്ലുള്ള ജീവികളും അവയുമായി അടുത്ത ജനിതകബന്ധം പുലർത്തുന്ന നട്ടെല്ലില്ലാത്ത ചില ജീവികളും ഉൾപ്പെടുന്ന ജന്തുക്കളിലെ ഒരു ഫൈലമാണ് കോർഡേറ്റ (Chordata). ഈ ഫൈലത്തിൽ ഉൾപ്പെടുന്ന ജീവികളാണ് കോർഡേറ്റുകൾ (Chordates). ഈ ഫൈലത്തിന്റെ സബ് ഫൈലങ്ങൾ യൂറോകോർഡേറ്റ, സെഫലോകോർഡേറ്റ, ക്രാനിയേറ്റ എന്നിവയാണ്, ഹെമികോർഡേറ്റ നാലാമത്തെ സബ് ഫൈലമായി കരുതിയിരുന്നുവെങ്കിലും ഇപ്പോൾ ഹെമികോർഡേറ്റ ഒരു ഫൈലമായാണ് ...
Putnam NH, Butts T, Ferrier DE, Furlong RF, Hellsten U, Kawashima T, Robinson-Rechavi M, Shoguchi E, Terry A, Yu JK, Benito-Gutierrez EL, Dubchak I, Garcia-Fernandez J, Gibson-Brown JJ, Grigoriev IV, Horton AC, de Jong PJ, Jurka J, Kapitonov VV, Kohara Y, Kuroki Y, Lindquist E, Lucas S, Osoegawa K, Pennacchio LA, Salamov AA, Satou Y, Sauka-Spengler T, Schmutz J, Shin-I T, Toyoda A, Bronner-Fraser M, Fujiyama A, Holland LZ, Holland PW, Satoh N, Rokhsar DS.The amphioxus genome and the evolution of the chordate karyotype.
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesnt cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. ...
Disclaimer: The Animal Diversity Web is an educational resource written largely by and for college students. ADW doesnt cover all species in the world, nor does it include all the latest scientific information about organisms we describe. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. ...
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Hank introduces us to ourselves by taking us on a journey through the fascinatingly diverse phyla known as chordata. And the next time someone asks you who you are, you can give them the facts: youre a mammalian amniotic tetrapodal sarcopterygian osteichthyen gnathostomal vertebrate cranial chordate.
additional source King, C.M.; Roberts, C.D.; Bell, B.D.; Fordyce, R.E.; Nicoll, R.S.; Worthy, T.H.; Paulin, C.D.; Hitchmough, R.A.; Keyes, I.W.; Baker, A.N.; Stewart, A.L.; Hiller, N.; McDowall, R.M.; Holdaway, R.N.; McPhee, R.P.; Schwarzhans, W.W.; Tennyson, A.J.D.; Rust, S.; Macadie, I. (2009). Phylum Chordata: lancelets, fishes, amphibians, reptiles, birds, mammals, in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia. pp. 431-554. [details] ...
additional source King, C.M.; Roberts, C.D.; Bell, B.D.; Fordyce, R.E.; Nicoll, R.S.; Worthy, T.H.; Paulin, C.D.; Hitchmough, R.A.; Keyes, I.W.; Baker, A.N.; Stewart, A.L.; Hiller, N.; McDowall, R.M.; Holdaway, R.N.; McPhee, R.P.; Schwarzhans, W.W.; Tennyson, A.J.D.; Rust, S.; Macadie, I. (2009). Phylum Chordata: lancelets, fishes, amphibians, reptiles, birds, mammals. ,em,in: Gordon, D.P. (Ed.) (2009). New Zealand inventory of biodiversity: 1. Kingdom Animalia: Radiata, Lophotrochozoa, Deuterostomia.,/em, pp. 431-554. [details] ...
We are talking about the frogs. Frogs belong to the phylum Chordata and class Amphibia. They have the potential to live on water as well as on land.
Domain Eucarya Kingdom Animalia Phylum Chordata Subphylum Vertebrata Class Mammalia Mammals evolved on land during the late Triassic period, but were no...
Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Superclassis: Osteichthyes • Classis: Actinopterygii • Subclassis: Neopterygii • Infraclassis: Teleostei • Superordo: Acanthopterygii • Ordo: Gasterosteiformes • Familia: Gasterosteidae • Genus: Spinachia • Species: Spinachia spinachia (Linnaeus, 1758) ...
Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: Gnathostomata • Classis: Chondrichthyes • Subclassis: Holocephali • Ordo: Chimaeriformes • Familia: Chimaeridae • Genus: Hydrolagus • Species: Hydrolagus alberti Bigelow and Schroeder, 1951 ...
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Actinopterygii; Polypteriformes; Polypteridae; Erpetoichthys ...
TY - JOUR. T1 - A Homolog of the Vertebrate Thyrostimulin Glycoprotein Hormone α Subunit (GPA2) is Expressed in Amphioxus Neurons. AU - Tando, Yukiko. AU - Kubokawa, Kaoru. PY - 2009/6/1. Y1 - 2009/6/1. N2 - The cystine-knot glycoprotein hormone α (GPA) family regulates gonadal and thyroid functions in ver-tebrates. Little is known concerning GPA family members in primitive chordates. A previous genomic analysis revealed the presence of two genes homologous to the thyrostimulin a subunit (GPA2) in an amphioxus (Branchiostoma floridae); however only one GPA2 homolog contained both the cystine-knot structure and N-glycosylation site characteristic of family members. Gene-specific PCR was used to obtain the cDNA and genomic sequences of the GPA2 homolog of the amphioxus Branchiostoma belcheri. Whole-mount in situ hybridization revealed GPA2 mRNA expression in the anterior part of the nerve cord and on the left side of the central canal. Because amphioxus possesses only one true GPA2 homolog, ...
The death receptor (DR)-mediated apoptosis pathway is thought to be unique to vertebrates. However, the presence of DR-encoding genes in the sea urchin and the basal chordate amphioxus prompted us to reconsider, especially given that amphioxus contains 14 DR proteins and hundreds of death domain (DD)-containing adaptor proteins. To understand how the extrinsic apoptotic pathway was originally established and what the differences in signaling are between invertebrates and vertebrates, we performed functional studies of several genes that encode DDs in the amphioxus Branchiostoma belcheri tsingtauense (Bbt). First, we observed that the increased abundance of Bbt Fas-associated death domain 1 (BbtFADD1) in HeLa cells resulted in the formation of death effector filamentous structures in the cytoplasm and the activation of the nuclear factor κB pathway, whereas BbtFADD2 protein was restricted to the nucleus, although its death effector domain induced apoptosis when in the cytoplasm. We further ...
Previous studies have shown the presence of Plg only in the jawed vertebrates [3,32], and a Plgl molecule has been discovered in the amphioxus B. belcheri, a basal chordate [19]. However, molecular cloning and identification of the putative Plgl in B. belcheri was lacking. In the present paper we demonstrate for the first time the presence of a kringle domain-containing protease with Plgl activity, named BbPlgl, in B. belcheri. The deduced 430-amino-acids long protein, BbPlgl, is structurally characterized by the presence of a putative N-terminal signal peptide of 16 amino acids, 2 kringle domains with the lysine-binding site structure in the N-terminus, a serine protease domain with the putative tPA-cleavage site (between Arg297 and Val298) in the C-terminus, the catalytic triad His237-Asp288-Ser379 expected for protease function, and a potential N-linked glycosylation site, which are all typical of Plgs. Moreover, the recombinant BbPlgl is readily activated by human uPA, and exhibits Plgl ...
Cephalochordates, urochordates, and vertebrates evolved from a common ancestor over 520 million years ago. To improve our understanding of chordate evolution and the origin of vertebrates, we intensively searched for particular genes, gene families, and conserved noncoding elements in the sequenced genome of the cephalochordate Branchiostoma floridae, commonly called amphioxus or lancelets. Special attention was given to homeobox genes, opsin genes, genes involved in neural crest development, nuclear receptor genes, genes encoding components of the endocrine and immune systems, and conserved cis-regulatory enhancers. The amphioxus genome contains a basic set of chordate genes involved in development and cell signaling, including a fifteenth Hox gene. This set includes many genes that were co-opted in vertebrates for new roles in neural crest development and adaptive immunity. However, where amphioxus has a single gene, vertebrates often have two, three, or four paralogs derived from two whole-genome
Looking for online definition of phylum Chordata in the Medical Dictionary? phylum Chordata explanation free. What is phylum Chordata? Meaning of phylum Chordata medical term. What does phylum Chordata mean?
LanceletDB: The Lancelet (Branchiostoma belcheri) Genome Sequencing and Annotation Project Database at Sun Yat-sen University, Anlong Xu, Shangwu Chen, Shengfeng Huang, Yonggui Fu, Shengfeng Huang, Shaochun Yuan, Leiming You
LanceletDB: The Lancelet (Branchiostoma belcheri) Genome Sequence and Annotation Project Database at Sun Yat-sen University, Anlong Xu, Shangwu Chen, Shengfeng Huang, Yonggui Fu, Shengfeng Huang, Shaochun Yuan, Leiming You
A cluster of three Specificity Protein (Sp) genes (Sp1-4, Sp5 and Sp6-9) is thought to be ancestral in both chordates and the wider Eumetazoa. Sp5 and Sp6-9 gene groups are associated with embryonic growth zones, such as tailbuds, and are both Wnt/β-catenin signalling pathway members and targets. Currently, there are conflicting reports as to the number and identity of Sp genes in the cephalochordates, the sister group to the vertebrates and urochordates. We confirm the SP complement of Branchiostoma belcheri and Branchiostoma lanceolatum, as well as their genomic arrangement, protein domain structure and residue frequency. We assay Sp5 expression in B. lanceolatum embryos, and determine its response to pharmacologically increased β-catenin signalling. Branchiostoma possesses three Sp genes, located on the same genomic scaffold. Phylogenetic and domain structure analyses are consistent with their identification as SP1-4, SP5 and SP6-9, although SP1-4 contains a novel glutamine-rich N-terminal ...
A common feature of chemosensory systems is the involvement of G protein-coupled receptors (GPCRs) in the detection of environmental stimuli. Several lineages of GPCRs are involved in vertebrate olfaction, including trace amine-associated receptors, type 1 and 2 vomeronasal receptors and odorant receptors (ORs). Gene duplication and gene loss in different vertebrate lineages have lead to an enormous amount of variation in OR gene repertoire among species; some fish have fewer than 100 OR genes, while some mammals possess more than 1000. Fascinating features of the vertebrate olfactory system include allelic exclusion, where each olfactory neuron expresses only a single OR gene, and axonal guidance where neurons expressing the same receptor project axons to common glomerulae. By identifying homologous ORs in vertebrate and in non-vertebrate chordates, we hope to expose ancestral features of the chordate olfactory system that will help us to better understand the evolution of the receptors themselves and
List of words make out of Branchiostoma. Anagrams and Words made out of Branchiostoma. Find Scrabble Point of Branchiostoma. Definition of Branchiostoma. Puzzle Solver.
The evolutionary relationships between the chordate groups and between chordates as a whole and their closest deuterostome relatives have been debated since 1890. Studies based on anatomical, embryological, and paleontological data have produced different family trees. Some closely linked chordates and hemichordates, but that idea is now rejected.[4] Combining such analyses with data from a small set of ribosome RNA genes eliminated some older ideas, but opened up the possibility that tunicates (urochordates) are basal deuterostomes, surviving members of the group from which echinoderms, hemichordates and chordates evolved.[42] Some researchers believe that, within the chordates, craniates are most closely related to cephalochordates, but there are also reasons for regarding tunicates (urochordates) as craniates closest relatives.[4][43]. Since early chordates have left a poor fossil record, attempts have been made to calculate the key dates in their evolution by molecular phylogenetics ...
The evolutionary relationships between the chordate groups and between chordates as a whole and their closest deuterostome relatives have been debated since 1890. Studies based on anatomical, embryological, and paleontological data have produced different family trees. Some closely linked chordates and hemichordates, but that idea is now rejected.[4] Combining such analyses with data from a small set of ribosome RNA genes eliminated some older ideas, but opened up the possibility that tunicates (urochordates) are basal deuterostomes, surviving members of the group from which echinoderms, hemichordates and chordates evolved.[42] Some researchers believe that, within the chordates, craniates are most closely related to cephalochordates, but there are also reasons for regarding tunicates (urochordates) as craniates closest relatives.[4][43] Since early chordates have left a poor fossil record, attempts have been made to calculate the key dates in their evolution by molecular phylogenetics ...
Phylum Chordata includes the vertebrates. Although not as common as the invertebrates, teeth and bones from different classes of vertebrate animals can be found at Canal sites.
The most complex group of animals to exist are the Chordates; comprising of all vertebrates and some invertebrates the Chordates all share and experience certain characteristics at some stage in their development.. These characteristics are what defines the chordates as complex animals. A notochord, the cartilage between the nerve chord and the spinal cord is only present in chordates. The dorsal hollow nerve chord will eventually develop into the central nervous system. Pharyngeal slits are gill like structures, we lose these before leaving the womb but some chordates keep them their whole lives. the final characteristic that defines and organism as part of the phyla chordata is a post anal tail. In humans, this is our coccyx.. Contain all of these characteristics and its safe to say youre a complex Chordate.. From Crash Course: Biology on YouTube presented by Hank Green. ...
Cephalochordates, the sister group of vertebrates + tunicates, are evolving particularly slowly. Therefore, genome comparisons between two congeners of Branchiostoma revealed so many conserved noncoding elements (CNEs), that it was not clear how many are functional regulatory elements. To more effectively identify CNEs with potential regulatory functions, we compared noncoding sequences of genomes of the most phylogenetically distant cephalochordate genera, Asymmetron and Branchiostoma, which diverged approximately 120-160 million years ago. We found 113,070 noncoding elements conserved between the two species, amounting to 3.3% of the genome. The genomic distribution, target gene ontology, and enriched motifs of these CNEs all suggest that many of them are probably cis-regulatory elements. More than 90% of previously verified amphioxus regulatory elements were re-captured in this study. A search of the cephalochordate CNEs around 50 developmental genes inseveral vertebrate genomes revealed ...
p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.,/p> ,p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.,/p> ,p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).,/p> ,p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x,sup>64,/sup> + x,sup>4,/sup> + x,sup>3,/sup> + x + 1. The algorithm is described in the ISO 3309 standard. ,/p> ,p class=publication>Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.,br /> ,strong>Cyclic redundancy and other checksums,/strong>,br /> ,a href=http://www.nrbook.com/b/bookcpdf.php>Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993),/a>),/p> Checksum:i ...
moxNeonGreen is a basic (constitutively fluorescent) green/yellow fluorescent protein published in 2015, derived from Branchiostoma lanceolatum.
Edmund Beecher Wilson experimented with Amphioxus (Branchiostoma) embryos in 1892 to identify what caused their cells to differentiate into new types of cells during the process of development. Wilson shook apart the cells at early stages of embryonic development, and he observed the development of the isolated cells. He observed that in the normal development of Amphioxus, all three main types of symmetry, or cleavage patterns observed in embryos, could be found. Wilson proposed a hypothesis that reformed the Mosaic Theory associated with Wilhelm Roux in Germany.. Format: Articles Subject: Experiments ...
Austroblechnum lanceolatum and A. norfolkianum are a species pair that need further taxonomic investigation. Exact distinctions between these species are difficult. Chambers & Farrant (1998) suggest that this is due to hybridisim but the basis for that suggestion is not clear. Most field botanists distinguish these two species on the basis of distribution and ecology with A. norfolkianum known only from northern New Zealand where it is mostly found on offshore islands. In this area it is typically found on rodent-free, sea bird islands where it is a conspicuous member of the shaded forest floor of petrel colonies as well as the more usual shaded bank and cliff habitats. Austroblechnum norfolkianum usually has brighter green, succulent fronds without the darker pink or maroon pigmentation often seen in A. lanceolatum, and the pinna of A. norfolkianum are consistently falcate (those of A.lanceolatum less often so), while the fertile fronds of A. norfolkianum are said to be shorter than sterile ...
This was written before the amphioxus genome had been sequenced, so its not up to date. However, the article presents considerable information derived from cDNA analysis. ...
A chordate is an animal belonging to the phylum Chordata; chordates possess a notochord, a hollow dorsal nerve cord, pharyngeal slits, an endostyle, and a post-anal tail, for at least some period of their life cycle. Chordates are deuterostomes, as during the embryo development stage the anus...
The notochord is an elongate, rod-like, skeletal structure dorsal to the gut tube and ventral to the nerve cord. The notochord should not be confused with the backbone or vertebral column of most adult vertebrates. The notochord appears early in embryogeny and plays an important role in promoting or organizing the embryonic development of nearby structures. In most adult chordates the notochord disappears or becomes highly modified. In some non-vertebrate chordates and fishes the notochord persists as a laterally flexible but incompressible skeletal rod that prevents telescopic collapse of the body during swimming. The nerve cord of chordates develops dorsally in the body as a hollow tube above the notochord. In most species it differentiates in embryogeny into the brain anteriorly and spinal cord that runs through the trunk and tail. Together the brain and spinal cord are the central nervous system to which peripheral sensory and motor nerves connect. The visceral (also called pharyngeal or ...
The notochord is an elongate, rod-like, skeletal structure dorsal to the gut tube and ventral to the nerve cord. The notochord should not be confused with the backbone or vertebral column of most adult vertebrates. The notochord appears early in embryogeny and plays an important role in promoting or organizing the embryonic development of nearby structures. In most adult chordates the notochord disappears or becomes highly modified. In some non-vertebrate chordates and fishes the notochord persists as a laterally flexible but incompressible skeletal rod that prevents telescopic collapse of the body during swimming. The nerve cord of chordates develops dorsally in the body as a hollow tube above the notochord. In most species it differentiates in embryogeny into the brain anteriorly and spinal cord that runs through the trunk and tail. Together the brain and spinal cord are the central nervous system to which peripheral sensory and motor nerves connect. The visceral (also called pharyngeal or ...
Acorn worms, also known as enteropneust (literally, gut-breathing) hemichordates, are marine invertebrates that share features with echinoderms and chordates. Together, these three phyla comprise the deuterostomes. Here we report the draft genome sequences of two acorn worms, Saccoglossus kowalevs …
Deuterostomes (animals with secondary mouths) are generally accepted to develop the mouth independently of the blastopore. However, it remains largely unknown whether mouths are homologous among all deuterostome groups. Unlike other bilaterians, in amphioxus the mouth initially opens on the left lateral side. This peculiar morphology has not been fully explained in the evolutionary developmental context. We studied the developmental process of the amphioxus mouth to understand whether amphioxus acquired a new mouth, and if so, how it is related to or differs from mouths in other deuterostomes. The left first somite in amphioxus produces a coelomic vesicle between the epidermis and pharynx that plays a crucial role in the mouth opening. The vesicle develops in association with the amphioxus-specific Hatschek nephridium, and first opens into the pharynx and then into the exterior as a mouth. This asymmetrical development of the anterior-most somites depends on the Nodal-Pitx signaling unit, and the
The phylum chordata represents the whole diverse class of vertebrates, animals with a vertebral column, as well as lancelets and tunicates. Two fertilization strategies are employed by members of chordata: internal fertilization, where the gametes, or sperm and egg, meet inside the body of one parent, and external ...
All vertebrates are chordates but all chordates are not vertebrates. Justify the statement. Dear student, All chordates have a notochord. Chordates include Ur
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bfloGFPa1 is a basic (constitutively fluorescent) green fluorescent protein published in 2014, derived from Branchiostoma floridae. It has very low acid sensitivity.
tunicate: Any member of the subphylum Tunicata (Urochordata) of the phylum Chordata. Small marine animals, they are found in great numbers throughout the seas of the world. Adult members...
Phylum Chordata : It includes highest evolved animals of the animals kingdom. Chief characteristics of the phylum are : (a)Notochord : A dorsal solid notochord is present throughout life or in larval stages. (b)Nerve cor…
Natura - nature Mundus - physical world;material world Naturalia Biota Domain Eukaryota - eukaryotes Kingdom Animalia - animals Subkingdom Bilateria - bilaterians;triploblastic animals Branch Deuterostomia - deuterostomes Infrakingdom Chordonia Phylum Chordata - chordates Subphylum Vertebrata - vertebrates Infraphylum Gnathostomata - jawed vertebrates Superclass Tetrapoda - tetrapods Superorder Reptiliomorpha 1 Order Anthracosauria H,N,P,R,B,L; Ref:M.J. Benton, 2005:394; Count: 3f;6g;1s Genus Anthracosaurus H,N,P,R,B,L; Count: 1s Genus Diplovertebron H,N,P,R,B,L Family Eogyrinidae H,N,P,R,B,L; Ref:B. Gardiner et al., 1989 1 Family Archeriidae H,N,P,R,B,L 1 Suborder Embolomeri H,N,P,R,B,L; Ref:1988 2 Family Pholidogasteridae H,N,P,R,B,L 2 Suborder Gephyrostegida H,N,P,R,B,L; Ref:1988 3 ? Unnamed H,N,P,R,B,L; Ref:1988 ...
The word Chordate is derived from the Greek word, chord which means cord or string and ata means bearing. They have 49,000 species up till now from which there are 2500 species of amphibian, 9000 birds, 4500 mammals, and around 6000 reptiles. They vary in size from medium to large, with exceptions of the gigantic blue whale and the smallest fish. They are considered as the most ecologically successful and largest group today. Chordates are able to occupy every type of habitat. They are found in the sea (marine), freshwater (aquatic), in the air (aerial) and on land (terrestrial), etc. from the poles to the equator. They have notochord or backbone and have well-developed body systems. ...
Module 13 in Exploring Creation Biology - Phylum Chordata. This is where vertebrates are found. Yes, this is where humans are classified, right along with this lovely Perch. :D Look at these lovies! Nice big specimens. We pray for great weather when it is time for the Perch dissection. Yes, it does smell and having that…
Scientific Name: Addax nasomaculatus Kingdom: Animalia Phylum: Chordata Class: Mammal Order: Artiodactyla Family: Bovidae Subfamily: Hippotraginae Genus: Addax
... is a species of sea snail, a marine gastropod mollusk in the family Pyramidellidae, the pyrams and their ... Rosenberg, G. (2012). Odostomia chordata. Accessed through: World Register of Marine Species at http://www.marinespecies.org/ ...
... is a species of sea snail, a marine gastropod mollusk in the family Buccinidae, the true whelks. Chlanidota ... chordata (Strebel, 1908). Retrieved through: World Register of Marine Species. v t e (Articles with short description, Short ...
... is a species of sea snail, a marine gastropod mollusk in the family Turritellidae. Suter, 1908, Proc. Malac ... Turritella chordata Suter, 1908. Retrieved through: World Register of Marine Species on 17 May 2010. v t e (Articles with short ...
It is found in Homo sapiens, and has the following lineage: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; ...
The specific lineage of TMEM156 is: Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; ...
Chordata. Berkeley, CA: U.C. Berkeley. "Branchiostoma japonicum and B. belcheri are Distinct Lancelets (Cephalochordata) in ...
ISBN 978-81-7133-903-7. Bhatnagar, MC; Bansal, G (2009). Non-Chordata. Delhi: Krishna Prakashan Media. pp. 153-154. ISBN 978-81 ...
"Eucariota, Animalia, Chordata". Georgian Biodiversity Database. Institute of Ecology. 2015. Retrieved 7 June 2016. "2016 წლის ...
"Eucariota, Animalia, Chordata". Georgian Biodiversity Database. Institute of Ecology. 2015. Archived from the original on 25 ...
ISBN 978-1-118-34233-6. "Kurtiformes {order} - Chordata; Actinopterygii". BOLD Systems. Retrieved 17 September 2018. v t e ( ...
... chordata Suter, 1908. Retrieved through: World Register of Marine Species on 19 May 2010. Turritella chrysotoxa ... 1822 Turritella chordata Suter, 1908 Turritella chrysotoxa Tomlin, 1825 Turritella cingulata Sowerby, 1825 Turritella ...
... chordata (Suter, 1908). Retrieved through: World Register of Marine Species on 15 April 2010. Aoteadrillia ... Species brought into synonymy Aoteadrillia chordata (Suter, 1908): synonym of Aoteadrillia wanganuiensis (Hutton, 1873) ...
The cladogram below shows the phylogeny of Heintzichthys: Hansen, Michael C. (2005). "Phylum Chordata-Vertebrate Fossils". In ...
Hansen, Michael C. (2005). "Phylum Chordata-Vertebrate Fossils". In Feldmann, Rodney M.; Hackathorn, Merrianne (eds.). Fossils ...
"Morphology of the Chordata". ucmp.berkeley.edu. Retrieved 11 May 2021. "Natural history". www.biologicaldiversity.org. ...
... chordata (Strebel, 1908). Retrieved through: World Register of Marine Species on 17 April 2010. Chlanidota ... Species within the genus Chlanidota include: Chlanidota anomala Kantor & Harasewych, 2008 Chlanidota chordata (Strebel, 1908) ...
Haaramo, Mikko (2007). "Chordata - lancets, tunicates, and vertebrates". Mikko's Phylogeny Archive. Retrieved 30 December 2016 ...
Bateson, W. (1886). "The ancestry of the chordata". Quarterly Journal of Microscopical Science. 26: 535-571. Bateson, W. (1888 ...
... (/ˈæɡnəθə, æɡˈneɪθə/, Ancient Greek ἀ-γνάθος 'without jaws') is an infraphylum of jawless fish in the phylum Chordata, ... ISBN 978-0-471-85074-8. Haaramo, Mikko (2007). "Chordata - lancets, tunicates, and vertebrates". Mikko's Phylogeny Archive. ...
"Felis catus: Felidae: Carnivora: Mammalia: Chordata". Smithsonian National Museum of Natural History. Retrieved July 21, 2020 ...
Ryggsträngsdjur: lansettfiskar - broskfiskar, Chordata: Branchiostomatidae - Chondrichthyes. ArtDatabanken, Uppsala See ...
Phylum Chordata [p. 24] Subphylum 1. Hemichordata (e.g., Balanoglossus, Cephalodiscus, Rhabdopleura) Subphylum 2. ...
Although the name Chordata is attributed to William Bateson (1885), it was already in prevalent use by 1880. Ernst Haeckel ... The Chordata and Ambulacraria, together and possibly with the Xenacoelomorpha, form the superphylum Deuterostomia. Chordate ... The current consensus is that chordates are monophyletic, meaning that the Chordata include all and only the descendants of a ... The Chordata and Ambulacraria together form the superphylum Deuterostomia. Hemichordates ("half chordates") have some features ...
Wikispecies has information related to Chordata Craniata. Campbell, Neil A.; Reece, Jane B. (2005). Biology (Seventh ed.). San ...
That would at least circumscribe the Chordata. However, even the notochord would be a less fundamental criterion than aspects ... it has very little circumscriptional significance except within the Chordata. The Vertebrata as a subphylum comprises such a ...
William Bateson (1885) was the first to advocate chordate aflinities of Enteropneusta and include them into Phylum Chordata. ... Bateson (1885) included them in Phylum Chordata. Hyman (1959), however, placed them near Echinodermata and gave Hemichordata a ...
Its lineage is: Catarrhini, Chordata, Craniata, Euarchontoglires, Eukaryota; Euteleostomi, Eutheri and others. "Human PubMed ...
Chordata: Mammalia)". Bonn Zoological Bulletin. 64 (1): 33-58.{{cite journal}}: CS1 maint: uses authors parameter (link) Iraq ...
For example, Animalia Arthropoda comes before Animalia Chordata. Links to Wikispecies and to the Smithsonian should show full ...
Mammalia is a class of animal within the phylum Chordata. Mammal classification has been through several iterations since Carl ...
BurningWell is a repository for public domain (free for any use) images. You are free to download, copy and use the photos you find here for any purpose. These free images were donated by photographers from around the world, do you have any photographs you would like to donate ...
Chordata Class: Actinopterygii Order: Scorpaeniformes Family: Scorpaenidae Tribe: Scorpaenini Genus: Taenianotus. Lacepède, ...
Chordata (igliwat) Pagbabag-o han 12:01, 29 Septyembre 2012 18 bytes added , 10 years ago ...
IOC Classification: Domain: Eukaryota • Regnum: Animalia • Phylum: Chordata • Subphylum: Vertebrata • Infraphylum: ...
Dermochelyidae is a family of marine turtles which has only one species, the Dermochelys coriacae. This animal lives in many oceans around the world. Dermochelyidae is the biggest of all turtles. Leatherback Sea Turtles can grow up to 244cm, and can also be over 800 kg, which is 600 to 1000lbs. This is an amazing size, but some have reached a record weight of 2000lbs. These turtles have sharp points on their upper lips instead of having teeth. What makes this turtle different from others is that instead of having a hard, shelled outer covering they have oily skin and flesh. That explains why they have their common name. One of this animals adaptations is its physiological one. This helps it avoid loss of its body heat, which means that they can live in different temperature areas (pole ward) compared to other turtles. Author: Sonia A Published: 02/2009 ...
Sign up for the American Chordata newsletter by entering your email below. We respect your privacy and will not send you spam. ... Copyright © 2022 American Chordata Foundation, Inc.. Privacy Policy. Website by Brandon Roberts ... No credit card information will be stored on American Chordata servers or databases, and these companies do not retain, share, ...
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Chordata Im On Top Of The World!. May 22, 2021 - 6 Comments ... Chordata, d810, f/6.3, fact, frog, frog joke, frogger, froggy, ... Chordata, climb, cute, cutie, d810, disambiguation, f/6.3, fact, fun, hamburg, hamburg nj, im on top of the world, Interesting ... Chordata, climb, cute, cutie, d7000, disambiguation, Eastern chipmunk, Eastern chipmunks, f/5.6, fact, fall, fun, Gallery, Hey ... Chordata, Cricetidae, d810, fact, fun, History, I Am Too Busy Working On My Own Grass To Notice If Yours Is Greener, ...
Animals.NET aim to promote interest in nature and animals among children, as well as raise their awareness in conservation and environmental protection. All photos used are royalty-free, and credits are included in the Alt tag of each image ...
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Glires; Rodentia; ...
Branches of Chordata. Taxonomic Level. Taxa. FWS Focus. Subphylum. 3. Infraphylum. 2. ...
16512 - Chordata. Collection: Batik Fiber: Nylon. Style: Patterns. Color: Chordata. Carpet Width: 12. Pattern Repeat: 36 x 27 ...
Chordata Motion is the open-source motion capture system. Our goal is to take the world of motion capture to the universe of ... The origin of Chordata Motion was a basic need. Bruno, our Tech Lead, wanted a way to register dance moves for a performance ... A lot has happened since then and during 2019 the system has been released as a BETA version. Chordata Motion is evolving and ... Copyright © 2022 by Chordata team , Privacy Policy , Terms & conditions. Unless specified otherwise, the content on this ...
chordáty (Chordata) Podkmeň (subphylum). stavovce (Vertebrata) Nadtrieda (superclassis). čeľustnatce (Gnathostomata) Stupeň. ...
American Chordata. American Chordata is a literary magazine based in Brooklyn, NY, dedicated to publishing great writing ...
Entries about chordata. Only showing entries about chordata from Thailand The Johnsons. View entries about chordata from all ... tourism deer outdoor alone khao resting meadow eat hunting wooden horn background brown otter antlers mammal behavior chordata ...
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... characteristics of phylum chordata is the presence of a notochord, the dorsal hollow nerve cord, and pair of pharyngeal gill ... of ChordataCyclostomatadivision of vertebrataExample of phylum ChordataGnathostomataMammaliamammalsOsteichthyesPhylum Chordata ... The phylum Chordata is divided into three subphyla-. 1. Urochordata or Tunicata- Notochord is present only in the larval tail. ... Phylum Chordata - Characteristics and Classification All chordates possess these 5 primary characters including a notochord, ...
Phylum: Chordata Subphylum: Vertebrata Infraphylum: Gnathostomata Megaclassis: Osteichthyes Cladus: Sarcopterygii. Cladus: ...
Chordata class Mammalia order Rodentia family Cricetidae genus Necromys species Necromys lasiurus Name. Synonyms. ? lasiurus ...
Essay on the Birds of India , Vertebrates , Chordata , Zoology. Reproductive System of Garden Lizard , Vertebrates , Chordata ... Reptiles: Origin and Adaptive Radiation (With Diagram) , Chordata , Zoology *Adaptive Convergence in Mammals , Chordata , ...
... Name. Last modified. Size. ... clam-chordata_1.0.0-2.debian.tar.gz. 2011-05-04 14:10 2.2K. ... clam-chordata_1.0.0.orig.tar.gz. 2011-05-04 14:10 43K. ...
... phylum Chordata) of entirely marine animals commonly known as Lancets. ... Phylum Chordata. *Subphylum Cephalochordata *Class Leptocardii *Order Amphioxiformes *Family Branchiostomatidae *Genus ... They have long fascinated biologists because they exhibit all four basic characteristics of the phylum Chordata (a dorsal nerve ...
Access and monitor your plant from anywhere with Chordata. ... With Chordata, your manufacturing plant is always at your ... Monitor Your Plant from Anywhere with Chordata. November 18, 2022. With Chordata, your manufacturing plant is always at your ...
Phylum: Chordata. Class: Aves (Taxon entry). Order: Charadriiformes. Family: Laridae. Genus: Larus. Species. Larus pacificus. ...
Chordata. Klasea. Aves. Ordena. Passeriformes. Familia. Emberizidae. Generoa. Emberiza Espeziea Emberiza calandra. Linnaeus, ...
Chordata (Phylum). *Vertebrata (Subphylum). *Gnathostomata (Infraphylum). *Tetrapoda (Megaclass). *Reptilia (Superclass). *Aves ...
You can see that, like us, the northern leopard frog is an animal (Kingdom: Animalia), and it has a back-bone (Phylum: Chordata ... Kingdom: Animalia, Phylum: Chordata, Class: Amphibia, Order: Anura (frogs and toads), Family: Ranidae (true frogs, unlike ... Animals with backbones, for example, belong to the Phylum: Chordata. On the other hand, animals with no back bones (such as ... Animals that belong in the Phylum: Chordata can be divided up into several different Classes. Mammals belong to the Class: ...
  • They have long fascinated biologists because they exhibit all four basic characteristics of the phylum Chordata (a dorsal nerve cord, a notochord, a post annul tail and pharyngeal gill slits) in the adult stage of their lives. (earthlife.net)
  • Ij Cordà ( Chordata , Bateson 1885) a rapresento un phylum d' animaj caraterisà da avèj 'n sostegn andrinta al còrp, ciamà notocòrda. (wikipedia.org)
  • Animals with backbones, for example, belong to the Phylum: Chordata. (angelfire.com)
  • Animals that belong in the Phylum: Chordata can be divided up into several different Classes. (angelfire.com)
  • It is a group of two or more dozen species belonging to the subphylum Cephalochordata of the phylum Chordata. (vedantu.com)
  • They belong to any of the two dozen species having a place with the subphylum Cephalochordata of the phylum Chordata. (vedantu.com)
  • To knock-out the four highest levels, elephants are in the Domain: Eukaryota, the Kingdom: Animalia, the Phylum: Chordata, and the Class: Mammalia, which basically means they are multicellular animals that have a backbone with a nerve cord that have hair, give live birth, and nurse their young. (zooatlanta.org)
  • Phylum in the domain Eukarya, comprised of animals either with fully developed backbones ( VERTEBRATES ), or those with notochords only during some developmental stage (CHORDATA, NONVERTEBRATE). (bvsalud.org)
  • Examination of the phylogenetic distribution of these lysozymes reveals that c-type lysozymes are predominantly present in the phylum of the Chordata and in different classes of the Arthropoda. (who.int)
  • Grayson , M. The Eponym Dictionary of Mammals (en anglès). (wikipedia.org)
  • American Chordata is a Brooklyn-based literary and art magazine. (americanchordata.org)
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  • Jiménez-Uzcátegui, G. Wiedenfeld, D.A. & Parker, P.G. (2007) Virurela aviar en especies silvestres (Passeriformes) en la isla Santa Cruz, Galápagos, Ecuador. (darwinfoundation.org)
  • Especie de orangután de la familia HOMINIDAE, que se encuentra en los bosques de la isla de Sumatra. (bvsalud.org)
  • Unless specified otherwise, the content on this website is created by the Chordata team and is available to share and use under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License . (chordata.cc)
  • Sur Wikipedia, les liens interlangues sont placés en haut à droite du titre de la page. (wikipedia.org)
  • Chordata Motion is the open-source motion capture system. (chordata.cc)
  • The origin of Chordata Motion was a basic need. (chordata.cc)
  • The 3D female model used by Chordata was created by Alexander Lee and adapted by Francois Medina . (chordata.cc)
  • Chordata Motion is now live on Kickstarter! (chordata.cc)
  • They are: The examples of phylum Chordata include the following: This chordate belongs to the sub-phylum Vertebrata. (yourwishes.eu)
  • The Phylum Chordata comprises three Subphyla: Urochordata, Cephalochordata, and Vertebrata. (thefreelibrary.com)
  • The chordates are named for the notochord, which is a flexible, rod-shaped … Chordata: information (1) Chordata: pictures (15057) Chordata: specimens (6829) Chordata: sounds (709) Related Taxa. (yourwishes.eu)
  • Invertebrate chordates are animals of the phylum Chordata that possess a notochord at some point in their development, but no vertebral column (backbone). (yourwishes.eu)
  • The animals belonging to all other phyla of the Animal Kingdom are o en termed 'as non -chordates' or 'invertebrates' since they neither have notochord nor backbone in their body. (brainkart.com)
  • The Phylum Chordata, the chordates, is the part of the Animal Kingdom containing organisms that possess a structure called a notochord, at least during some part of their development. (odp.org)
  • Some animals in the Chordata Phylum are not considered vertebrates but instead have a backbone-like structure. (yourwishes.eu)
  • The Chordata is the animal phylum with which everyone is most intimately familiar, since it includes humans and other vertebrates. (yourwishes.eu)
  • Vertebrates are members of the larger phylum Chordata, and show all of the major chordate features at some … Phylum Chordata. (yourwishes.eu)
  • The phylum Chordata is a strange phylum in that it contains three subphyla, two of which contain invertebrates while the third contains all the animals we are most familiar with - the vertebrates. (yourwishes.eu)
  • The three major clades of deuterostomes are Chordata (e.g. vertebrates ), Echinodermata (e.g. starfish ), and Hemichordata (e.g. acorn worms ). (eol.org)
  • Phylum in the domain Eukarya, comprised of animals either with fully developed backbones ( VERTEBRATES ), or those with notochords only during some developmental stage ( CHORDATA, NONVERTEBRATE ). (nih.gov)
  • Chordata, Nonvertebrate" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (ouhsc.edu)
  • This graph shows the total number of publications written about "Chordata, Nonvertebrate" by people in this website by year, and whether "Chordata, Nonvertebrate" was a major or minor topic of these publications. (ouhsc.edu)
  • Below are the most recent publications written about "Chordata, Nonvertebrate" by people in Profiles. (ouhsc.edu)
  • The phylum chordata is a very diverse phylum which contains about 43,000 living species. (yourwishes.eu)
  • A. Subphylum Urochordata Phylum Chordata with examples. (yourwishes.eu)
  • bsc-part-2-zoology-chordata-2014.pdf DBRAU Question Paper and solutions, DR. BHIMRAO AMBEDKAR UNIVERSITY, AGRA डॉ. (dbrauonline.com)
  • Eschmeyer , W. N . Genera of Recent Fishes (en anglès). (wikipedia.org)
  • Eschmeyer , W. N . Catalog of Fishes (en anglès). (wikipedia.org)
  • Facey , D. E. The Diversity of Fishes (en anglès). (wikipedia.org)
  • Cech , J. Fishes: An Introduction to Ichthyology (en anglès). (wikipedia.org)
  • This note contains detail information about Chordata along with its diagnostic features.The notochord is an elastic solid, skeletal rod lies above the alimentary canal and below dorsal tubular nerve chord. (kullabs.com)
  • Chordata is bilaterally symmetrical, triploblastic, coelomates having a supporting skeletal rod i.e. notochord, a nerve chord, pharyngeal gill slits which may persist change or disappear in the adult. (kullabs.com)
  • Welcome to Chordata, the free and open source motion capture system that you can build yourself. (chordata.cc)
  • This is the Chordata knowledge base, here you can find information on the many aspect of the project, from its basic usage to the foundations that make inertial motion capture work. (chordata.cc)
  • Chordata is a hardware/software motion capture framework. (chordata.cc)
  • Chordata offers a fully functional motion capture system. (chordata.cc)
  • Chordata Motion is now live on Kickstarter! (chordata.cc)