B chromosomes and extrachromosomal DNA, Meeting Abstracts from the 5 th B Chromosome Conference. Trifonov V.A., Lamatsch D.K., Makunin A.I.
Conservation of major satellite DNAs in snake heterochromatin, Animals 13(3): 334, doi: 10.3390/ani13030334 Lisachov A., Rumyantsev A., Prokopov D., Ferguson-Smith M., Trifonov V.The staff of the Laboratory are among the contributors of a large international consortium DNA Zoo Common voles karyotype evolution : Goal: The cytogenetic data, obtained from the Non-Robertsonian chromosome hybrid zone arvalis - obscurus by the contact of the two karyotypic forms in East Europe, rise a new interest to geographic distribution, genetic boundaries and the full content for chromosome variants in the Microtus arvalis group, one of the pioneers for chromosome cryptic species discoveries.Methods: Fluorescence In Situ Hybridization, DNA Barcoding, Chromosomes, Immunofluorescence Microscopy, Meiotic Prophase I, Synaptonemal complex analysis Our method will allow us to precisely cytologically map the locations of the differentiated and pseudoautosomal regions at the squamate sex chromosomes. In squamates, there are many sex chromosomal systems of independent origin, shared by more or less numerous groups of related species. The main method which we use, the immunoflourescent analysis of the synaptonemal complexes, is also a powerful tool in studying sex chromosomes. We will focus on elucidating possible phylogenetic, karyotypic and adaptive factors influencing these traits. The project is aimed to investigate the variation in recombination rate and crossover distribution along the chromosomes in different squamate lineages. Therefore, the evolution if the recombination in reptiles is much less affected by the karyotypic evolution than in mammals, which are more common objects in the studies of the recombination evolution. Reptiles are good objects to investigate this issue, since even phylogenetically distant species of them frequently have similar karyotypes with largely syntenic chromosomes and chromosomal arms. Goal: Meiotic recombination rate and recombination landscapes of individual chromosomes vary greatly among vertebrate taxa, but the evolutionary and adaptive significance of this variation is still poorly understood. Crossing over patterns in the squamate genomes (autosomes and sex chromosomes):.System of chromosomal sex determination.1992-1997 Diploma (Molecular Biology) at Novosibirsk State University Faculty of Natural Sciences.1997-2001PhD (Molecular Biology) at Novosibirsk State University.since 2012: Head of Laboratory of Comparative Genomics, Department of Diversity and Evolution of Genomes, Institute of Molecular and Cellular Biology Novosibirsk SB RAS.since end of March 2023: guest researcher at Research Department for Limnology, Mondsee, of the University of Innsbruck.Unternavigation »universitaet Faculties« öffnen Faculties.Unternavigation »universitaet Organisational structure« öffnen Organisational structure.Unternavigation »universitaet Governance Structure« öffnen Governance Structure.Unternavigation »universitaet The University« öffnen The University.Unternavigation »netzwerk University Society« öffnen University Society.Unternavigation »netzwerk International« öffnen International.Unternavigation »netzwerk Graduates« öffnen Graduates.Unternavigation »netzwerk Expertise and Knowledge« öffnen Expertise and Knowledge.Unternavigation »forschung Faculties« öffnen Faculties.Center for Gender Studies Innsbruck (CGI).Unternavigation »forschung Research Platform« öffnen Research Platform.Cultural Encounters - Cultural Conflicts.Unternavigation »forschung Research Areas« öffnen Research Areas.Unternavigation »forschung Research Overview« öffnen Research Overview.Unternavigation »studium Services for Students« öffnen Services for Students.Unternavigation »studium Continuing Education« öffnen Continuing Education.Unternavigation »studium International study« öffnen International study.Unternavigation »studium Student Advisory Service« öffnen Student Advisory Service.Open Access publishing of Master and PhD thesis.Recognition and allocation of ECTS-Credits.Unternavigation »studium Course Organisation« öffnen Course Organisation.Asylum seekers and recognized refugees: MORE-Initiative.University entrance qualification examination.Bachelor's / Diploma / Secondary school teacher accreditation programme.Unternavigation »studium Admission to Study Programmes« öffnen Admission to Study Programmes.Unternavigation »studium Study Programmes« öffnen Study Programmes.Unternavigation »studium At a glance« öffnen At a glance.Unternavigation »intranet Fortbildung« öffnen Fortbildung.Unternavigation »intranet Uniwiki« öffnen Uniwiki.Unternavigation »intranet Services« öffnen Services.Unternavigation »intranet Aktuelles« öffnen Aktuelles.