Journal of Ichthyology

, Volume 50, Issue 5, pp 351–361

Genetic differentiation of Arctic charr Salvelinus alpinus complex from Transbaikalia revealed by microsatellite markers

  • N. V. Gordeeva
  • A. G. Osinov
  • S. S. Alekseyev
  • A. N. Matveev
  • V. P. Samusenok
Article

DOI: 10.1134/S0032945210050012

Cite this article as:
Gordeeva, N.V., Osinov, A.G., Alekseyev, S.S. et al. J. Ichthyol. (2010) 50: 351. doi:10.1134/S0032945210050012

Abstract

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 of these 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.

Key words

Arctic charr sympatric forms microsatellites genetic diversity isolation migration 

Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  • N. V. Gordeeva
    • 1
  • A. G. Osinov
    • 2
  • S. S. Alekseyev
    • 3
  • A. N. Matveev
    • 4
  • V. P. Samusenok
    • 4
  1. 1.Vavilov Institute of General GeneticsRussian Academy of SciencesMoscowRussia
  2. 2.Moscow State UniversityMoscowRussia
  3. 3.Kol’tsov Institute of Developmental BiologyRussian Academy of SciencesMoscowRussia
  4. 4.Faculty of Biology and Soil BiologyIrkutsk State UniversityIrkutskRussia

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