Loading...
*  Department of Biological Sciences
... non-native insects and being summoned to the World Bank to discuss climate change and invasive insect species. ... Oxidative Damage Leads to Errors in Meiotic Chromosome Segregation. Submitted by Ann Lavanway on Sun, 10/30/2016 - 1:03pm ... The group is studing the complex ultrasonic communications of bats and their insect prey. The read or hear the full interview ... Matt Ayres is an internationally recognized expert on the effects of climate change on the impact and distribution insects. In ...
http://biology.dartmouth.edu/node/
*  Are males just simpler?
... and that a number of these genes are found on the X chromosome (as well as on the autosomes). Now the X chromosome seems to be ... from peacocks tails to the elaborate genitalia of insects. So there is obviously a lot of interest in understanding how sexual ... As males have only a single X chromosome there simply is not any dominance due to genetic variation on the X chromosome (at ... I don't recall if birds' Z and W chromosomes contain vastly differing amounts of genes like the X and Y, though. ...
http://popgen-ramblings.blogspot.com/2007/12/are-males-just-simpler.html
*  The Chromosomes of Insects | Science
Thank you for your interest in spreading the word about Science.. NOTE: We only request your email address so that the person you are recommending the page to knows that you wanted them to see it, and that it is not junk mail. We do not capture any email address.. ...
http://science.sciencemag.org/content/215/4532/498.1
*  Micromanipulation of Chromosomes in Insect Spermatocytes | Protocol
To pull on or move a chromosome, focus on a chromosome near the top of the cell.. NOTE: These chromosomes are easier to ... Micromanipulation of Chromosomes in Insect Spermatocytes. Nicolas K.H. Lin1, Ryder Nance2, Jane Szybist2, Alan Cheville2, ... either apply tension to the chromosome or apply sufficient tension to detach a chromosome from the spindle. Once a chromosome ... Lin, N. K., Nance, R., Szybist, J., Cheville, A., Paliulis, L. V. Micromanipulation of Chromosomes in Insect Spermatocytes. J. ...
https://www.jove.com/video/57359/micromanipulation-of-chromosomes-in-insect-spermatocytes
*  Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect | PNAS
Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect. Natsuko Kondo, Naruo Nikoh, Nobuyuki ... Insect-induced effects on plants and possible effectors used by galling and leaf-mining insects to manipulate their host-plant ... Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect ... Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect ...
https://www.pnas.org/content/99/22/14280/tab-article-info
*  Longicorn beetle that vectors pinewood nematode carries many Wolbachia genes on an autosome | Proceedings of the Royal Society...
... is located on the insect chromosome.. The ftsZ+ insects and the ftsZ− insects of M. alternatus examined in this study were ... b) Male chromosomes in the meiotic metaphase I. (c) Sperm nuclei. Wolbachia genes are visualized in yellow, and insect ... 2002b Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect. Proc. Natl Acad. Sci. USA 99, 14 ... h) In situ hybridization of Wolbachia genes on insect chromosomes. Fluorescent in situ hybridization analysis, using a 5.5 kb ...
http://rspb.royalsocietypublishing.org/content/early/2009/08/14/rspb.2009.1022
*  Hans Ris (1914-2004): Genophore, chromosomes and the bacterial origin of chloroplasts
Ris was especially interested in the peculiarities and oddities of insect chromosome cytology. With Sally Hughes-Schrader at ... The chromatids (half-chromosomes) of the large X chromosomes do not separate from each other in the first meiotic cell division ... Since the amount of DNA per chromosome set was constant and the number of chromosome sets in egg and sperm was half that in the ... In animal and plant cells chromosomes stain pink with the Feulgen reaction, a Schiff-base forming reaction. Chromosomes ...
http://scielo.isciii.es/scielo.php?script=sci_arttext&pid=S1139-67092005000200011&lng=es&nrm=i
*  Publications
Kaiser V & Bachtrog D (2010). Evolution of sex chromosomes in Insects. Annual Review of Genetics, 44: 91-112.. 31. Jensen J & ... Blackmon H, Ross L, Bachtrog D. (2014). Sex determination, sex chromosomes and karyotype evolution in insects, submitted.. 64. ... Bachtrog D (2005) Sex chromosome evolution: Molecular aspects of Y chromosome degeneration in Drosophila. Genome Research, 15( ... Chromosome Research, 17(5): 585-602.. 28. Bachtrog D, J Jensen & Z Zhang (2009) Accelerated adaptive evolution on a newly ...
http://ib.berkeley.edu/labs/bachtrog/publications/publications.html
*  a) Anastrepha ludens mitotic metaphase chromosomes from | Open-i
Anastrepha ludens mitotic metaphase chromosomes from brain ganglia of third instar male larva of the wild-type strain. b-c) ... One of the main components of this program is the sterile insect technique (SIT), which is used to control field populations of ... Mentions: Mitotic chromosomes. Anastrepha ludens has six pairs of acrocentric chromosomes, five autosomes and a pair of sex ... Mentions: Mitotic chromosomes. Anastrepha ludens has six pairs of acrocentric chromosomes, five autosomes and a pair of sex ...
https://openi.nlm.nih.gov/detailedresult.php?img=PMC4255765_1471-2156-15-S2-S1-2&req=4
*  An Explanation Of Haplo-Diploidy Reproduction
haploid being one half set of chromosomes and diploid being one whole set of chromosomes. ... Haplo-diploidy reproduction by half sets of chromosomes to form full sets by sexual reproduction. ... Female insects are generally XX. In human male gametes, each sperm has either an X or Y chromosome; in eggs the sex chromosome ... In insects, the sperm which does not have a sex chromosome thus creates a male insect (XO). ...
http://dave-cushman.net/bee/haploiddiploid.html
*  The hologenome concept of evolution after 10 years | Microbiome | Full Text
Wolbachia genome integrated in an insect chromosome: evolution and fate of laterally transferred endosymbiont genes. Genome Res ... Login FH, Heddi A. Insect system maintains long-term resident bacteria through a local response. J Insect Physiol. 2013;59:232- ... Wolbachia genes to the chromosomes of their insect hosts [164], bacterial and fungal genes into the telomere region of rotifers ... Endosymbionts, such as Buchnera in aphids [97] and Wolbachia in many insects [98], are transferred vertically via oocytes. ...
https://microbiomejournal.biomedcentral.com/articles/10.1186/s40168-018-0457-9
*  Table of Contents - May 26, 1972, 176 (4037) | Science
Chromosome Rearrangements for the Control of Insect Pests. By G. G. Foster, M. J. Whitten, T. Prout, R. Gill ...
http://science.sciencemag.org/content/176/4037
*  A New Diagnostic Resource for Ceratitis capitata Strain Identification Based on QTL Mapping | G3: Genes | Genomes | Genetics
2016 Extraordinary conservation of entire chromosomes in insects over long evolutionary periods. Evolution 70: 229-234. ... 1998 Sterile insect technique for suppressing and eradicating insect populations: 55 years and counting. J. Agric. Entomol. 15 ... A) Schematic of the sex chromosomes and the fifth chromosome containing the wp and tsl gene for female and male Vienna-8 GSS ( ... B) Drawing of the sex chromosomes and the fifth chromosome containing the genes for female and male wild-type C. capitata white ...
https://www.g3journal.org/content/7/11/3637
*  Holobionts as Units of Selection and a Model of Their Population Dynamics and Evolution | SpringerLink
Nikoh N, Tanaka K, Shibata F et al (2008) Wolbachia genome integrated in an insect chromosome: evolution and fate of laterally ... Moran NA, Yun Y (2015) Experimental replacement of an obligate insect symbiont. Proc Natl Acad Sci USA 112:2093-2096CrossRef ... Watanabe H, Tokuda G (2010) Cellulolytic systems in insects. Annu Rev Entomol 55:609-632CrossRefGoogle Scholar ... Leclercq S, Thézé J, Chebbi MA et al (2016) Birth of a W sex chromosome by horizontal transfer of Wolbachia bacterial symbiont ...
https://link.springer.com/article/10.1007%2Fs13752-017-0287-1
*  Chromosome A nalysis a nd FISH Mappi ng of Ribosomal DNA (rDNA), Telomeric (TTAGGG) n a nd (GATA) n Repeats i n the Leech...
In the present paper the chromosome complement ( n = 13; 2 n = 26) of the common leech Haemopis sanguisuga(L.) (Annelida: ... TTAGG telomere repeats in chromosomes of some insects and other arthropods. Chrom. Res. 7: 449-460.Google Scholar ... Chromosome banding in Amphibia. VIII. An unusual XY/XX sex chromosome system in Gostrotheca riobambae (Anura, Hylidae). ... chromosomes FISH Haemopis sanguisuga Hirudinea repetitive DNA This is a preview of subscription content, log in to check access ...
https://link.springer.com/article/10.1023/A:1020165425392
*  Nettie Stevens - Wikipedia
Using observations of insect chromosomes she discovered that, in some species, chromosomes are different among the sexes. The ... one with a large chromosome and one with a small chromosome. When the sperm with the large chromosome fertilized eggs, they ... Stevens proposed that chromosomes always existed in pairs and that the Y chromosome was the pair of the X chromosome discovered ... The experiments completed to determine this used a range of insects. She identified the Y chromosome in the mealworm, Tenebrio ...
https://en.wikipedia.org/wiki/Nettie_Stevens
*  Kif18a regulates Sirt2-mediated tubulin acetylation for spindle organization during mouse oocyte meiosis | Springer for...
... are critical for chromosome congression and segregation. However, the roles of the kinesin superfamily in... ... Kinesin-5 mediated chromosome congression in insect spindles. Cell Mol Bioeng. 2018;11(1):25-36.CrossRefGoogle Scholar ... which is involved in chromosome alignment and correct chromosome segregation during oocyte meiosis. During this process, post- ... Spindle assembly and chromosome alignment demand hypoacetylation of tubulin K40 during meiosis. a Typical images of MI control ...
https://rd.springer.com/article/10.1186%2Fs13008-018-0042-4
*  Uncovering the hidden players in Lepidoptera biology: the heritable microbial endosymbionts [PeerJ]
The Lepidoptera is one of the most widespread and recognisable insect orders. Due to their remarkable diversity, economic and ... Microorganisms associated with chromosome destruction and reproductive isolation between two insect species.. Nature 346(6284): ... Insect sex determination manipulated by their endosymbionts: incidences, mechanisms and implications.. Insects 3(1):161-199 ... Wolbachia genome integrated in an insect chromosome: evolution and fate of laterally transferred endosymbiont genes.. Genome ...
https://peerj.com/articles/4629/
*  No evidence for extensive horizontal gene transfer in the genome of the tardigrade Hypsibius dujardini | PNAS
2002) Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect. Proc Natl Acad Sci USA 99(22):14280 ... in situ proof of presence on nuclear chromosomes (33), Mendelian inheritance (34), and phylogenetic perdurance (presence in all ...
http://www.pnas.org/content/early/2016/03/23/1600338113
*  Sex - Wikipedia
... but organisms may inherit one or two X chromosomes. In field crickets, for example, insects with a single X chromosome develop ... Many insects use a sex determination system based on the number of sex chromosomes. This is called X0 sex-determination-the 0 ... Chromosomes are passed on from one generation to the next in this process. Each cell in the offspring has half the chromosomes ... Kaiser VB, Bachtrog D (2010). "Evolution of sex chromosomes in insects". Annu. Rev. Genet. 44: 91-112. doi:10.1146/annurev- ...
https://en.wikipedia.org/wiki/Sex
*  Evolution
"Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect". Proc. Natl. Acad. Sci. U.S.A. 99 (22): ... For example, two chromosomes in the Homo genus fused to produce human chromosome 2; this fusion did not occur in the lineage of ... This allows the chromosomes from each parental species to form a matching pair during meiosis, as each parent's chromosomes is ... An extreme case is the Eusociality found in social insects, such as bees, termites and ants, where sterile insects feed and ...
https://www.bionity.com/en/encyclopedia/Evolution.html
*  One Species' Genome Discovered Inside Another's - Redorbit
Clark confirmed that the wolbachia genes are inherited like "normal" insect genes in the chromosomes, and Dunning-Hotopp showed ... Clark was able to see that wolbachia genes were present on the second chromosome of the insect. ... The bacterium invades a member of a species, most often an insect, and eventually makes its way into the host's eggs or sperm. ...
http://www.redorbit.com/news/science/1058188/one_species_genome_discovered_inside_anothers/
*  Ebolusyon - Wikipedia, ang malayang ensiklopedya
"Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect". Proc. Natl. Acad. Sci. U.S.A. 99 (22): ... Berlocher SH, Feder JL (2002). "Sympatric speciation in phytophagous insects: moving beyond controversy?". Annu Rev Entomol. 47 ... Daly H, Doyen JT, and Purcell AH III (1998), Introduction to insect biology and diversity, 2nd edition. Oxford University Press ... Tobler, Micheal (2009). Does a predatory insect contribute to the divergence between cave- and surface-adapted fish populations ...
https://tl.wikipedia.org/wiki/Ebolusyon
*  ജീവപരിണാമം - വിക്കിപീഡിയ
"Genome fragment of Wolbachia endosymbiont transferred to X chromosome of host insect". Proc. Natl. Acad. Sci. U.S.A. 99 (22): ...
https://ml.wikipedia.org/wiki/%E0%B4%AA%E0%B4%B0%E0%B4%BF%E0%B4%A3%E0%B4%BE%E0%B4%AE%E0%B4%82