Počet záznamů: 1

Lack of reproductive isolation between the Western and Eastern phylogroups of the tench

  1. 1.
    0341022 - UZFG-Y 2011 RIV NL eng J - Článek v odborném periodiku
    Lajbner, Zdeněk - Kohlmann, K. - Linhart, O. - Kotlík, Petr
    Lack of reproductive isolation between the Western and Eastern phylogroups of the tench.
    Reviews in Fish Biology and Fisheries. Roč. 2010, č. 3 (2010), s. 289-300 ISSN 0960-3166
    Grant CEP: GA MŠk LC06073
    Výzkumný záměr: CEZ:AV0Z50450515
    Klíčová slova: Tench * Phylogroups * Reproductive isolation
    Kód oboru RIV: EG - Zoologie
    Impakt faktor: 3.609, rok: 2010

    We conducted a population genetic test of an indication that two phylogroups of the tench, previously recognised by us, may represent distinct species. We analysed variation at introns of nuclear genes, microsatellites, allozymes and mitochondrial DNA in populations from two postglacial lakes within the contact zone in Germany. The test is based on the expectation that in the presence of strong barriers to reproduction, a hybrid population will show genome-wide associations among alleles and genotypes from each phylogroup even after hundreds of generations of interbreeding. In contrast to this expectation, no consistent significant deviations from linkage and Hardy-Weinberg equilibria were found. Samples from both lakes did show significant disequilibria but they were limited to individual loci and were not concordant between populations, and were not robust to the method used. The single consistent association can be attributed to physical linkage between two microsatellite loci.
    Trvalý link: http://hdl.handle.net/11104/0184136