Genetic Differentiation of Arctic Charr Salvelinus alpinus Complex from Transbaikalia Revealed by Microsatellite Markersстатья

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[1] Genetic differentiation of arctic charr salvelinus alpinus complex from transbaikalia revealed by microsatellite markers / N. V. Gordeeva, A. G. Osinov, S. S. Alekseyev et al. // Journal of Ichthyology. — 2011. — Vol. 55, no. 5. — P. 351–361. Variation at eight microsatellite loci was studied in Arctic charr Salvelinus alpinus complex from five Transbaikalian mountain lakes. Samples from three lakes included two sympatric charr forms (dwarf and small) differing in trophic specialization, morphology and life cycle parameters. Sympatric forms were genetically closer to each other than to charr from other lakes which evidences their independent origin in each ofthese lakes as the result of sympatric speciation. In each lake, gene pools of sympatric forms were segregated to a different degree (estimates of FST varying from 0.030–0.184 and those of ρST varying from 0.119–0.359).Hierarchical analysis of allelic frequencies variance (AMOVA) in Arctic charr from Lake Baikal, the Vitim,and the Olekma basins showed that variation among and within these basins accounted for 19.5% of the interpopulational variance each. In the AMOVA design, investigating differences among sympatric forms in three lakes these differences accounted for 7.1% of the total variance. [ DOI ]

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