Loading...
  • determination
  • Ever since their discovery, these chromosomes have captivated researchers because of their obvious involvement in fundamental aspects of an organism's life, such as sex determination, sexual reproduction and sexual conflicts. (lu.se)
  • evolution
  • Finally, we use our unique 30-year ecological dataset and rich collection of DNA samples of the great reed warbler to test the widely accepted but poorly supported sexual antagonism hypothesis suggesting that sexually antagonistic mutations accumulate on the sex chromosomes and drive their evolution. (lu.se)
  • To understand the interplay between sex chromosomes and sexual conflicts by studying whether sexually antagonistic mutations accumulate on sex chromosomes, and whether sexual conflicts drive sex chromosome evolution. (lu.se)
  • genetic
  • These chromosome classes differ with respect to several of the factors thought to affect nucleotide diversity and contrasting the levels of diversity in the different classes may thus be informative for addressing the role of population genetic factors in shaping genomic variability. (genetics.org)
  • therian
  • Other vertebrate classes have a variety of sex-determining mechanisms, but none shares the therian SRY -driven XX female:XY male system. (springer.com)
  • molecular
  • Here, in contrast, with several evidences, from classical and molecular cytogenetic analyses, we found 12 sex chromosomes in a Brazilian population of the smoky jungle frog, designated as Leptodactylus pentadactylus Laurenti, 1768 (Leptodactylinae), which has a karyotype with 2 n = 22 chromosomes. (springer.com)
  • somatic cells
  • An extensive bioinformatic analysis and comparison of SAGE transcriptomes of the total testis, testicular somatic cells and other mouse tissues was performed and the theory of male-biased gene accumulation on the X chromosome was tested. (biomedcentral.com)
  • 1991
  • 1991. [Comparative analysis of banded chromosomes of pikas and intrageneric taxonomy of the genus Ochotona (Ochotonidae, Lagomorpha)] // Proceedings of the Zoological Institute of the Russian Academy of Sciences. (msu.ru)
  • Proteins
  • Substantially pure sex-associated membrane (SAM) proteins. (google.com)
  • The field of this invention is the isolation of novel proteins and their use in methods to increase the probability that mammalian offspring produced by it will be of a desired sex or carry a gone for a particular sex-chromosome linked trait. (google.com)
  • More particularly, this invention relates to sex-associated membrane proteins and to antibodies which bind to them. (google.com)
  • comparative
  • Fluorescence in-situ hybridization was used to construct a comparative chromosome map between the laboratory mouse, Mus musculus and the African four-striped mouse, Rhabdomys pumilio. (sun.ac.za)
  • Comparative cytogenetic studies on Xenarthra, one of the most basal mammalian clades in the Placentalia, are virtually absent, being restricted largely to descriptions of conventional karyotypes and diploid numbers. (sun.ac.za)
  • hybridization
  • Here, using fluorescence in-situ hybridization (FISH) with arm-specific DNA probes of chromosomes 1, 2 and 5, we visualized arm domains and established hierarchical levels of sperm chromatin structures. (biologists.org)
  • Using epifluorescence microscopy following two-color fluorescence in-situ hybridization (FISH) with micro-dissected probes for the p-arms and q-arms of the large metacentric chromosome 1 and chromosome 2 (CHR1 and CHR2), and the large submetacentric chromosome 5 (CHR5), we dissected the internal organization of CTs, and describe here successive hierarchies of chromosome structures. (biologists.org)
  • FISH was used for DvirIII hybridization with salivary gland polytene chromosomes and ovarian nurse cells of D. virilis and D. kanekoi. (deepdyve.com)