Počet záznamů: 1

Depleted genetic variation of the European ground squirrel in Central Europe in both microsatellites and the major histocompatibility complex gene: implications for conservation

  1. 1.
    0360029 - UBO-W 2012 RIV NL eng J - Článek v odborném periodiku
    Říčanová, Štěpánka - Bryja, Josef - Cosson, J.-F. - Gedeon, C. - Choleva, Lukáš - Ambros, M. - Sedláček, F.
    Depleted genetic variation of the European ground squirrel in Central Europe in both microsatellites and the major histocompatibility complex gene: implications for conservation.
    Conservation Genetics. Roč. 12, č. 4 (2011), s. 1115-1129 ISSN 1566-0621
    Grant CEP: GA MŠk LC06073
    Grant ostatní: European Science Foundation(XE) ConGen EX/1141
    Výzkumný záměr: CEZ:AV0Z60930519; CEZ:AV0Z50450515
    Klíčová slova: Souslik * Endangered species * Habitat fragmentation * DRB * MHC Class II
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 1.610, rok: 2011

    In total 382 individuals of the European ground squirrel were analysed from 16 populations in Central Europe by using selectively neutral (12 microsatellites) and non-neutral (MHC class II DRB gene) loci. Spatial genetic analyses defined two groups of populations, ‘‘western’’ and ‘‘eastern’’. The western populations had significantly lower genetic diversity in both markers and they face to higher level of fragmentation. One allele of the DRB gene predominated in the western group, four alleles were found in the eastern one. Population differentiation was high, but similar in both groups. Comparison of genetic variability and structure on microsatellites and MHC gene does not provide any evidence for contemporary selection on MHC gene. Genetic drift in small bottlenecked and fragmented populations may overact the role of balancing selection. Crossbreeding between the western and eastern populations should be done to reduce the risk of inbreeding depression in the western populations.
    Trvalý link: http://hdl.handle.net/11104/0197680