Genetic differentiation of three sympatric charr species from genus Salvelinus inferred from PCR-RFLP analysis of mitochondrial DNA |
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Authors: | Oleĭnik A G Skurikhina L A Brykov Vl A |
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Affiliation: | Institute of Marine Biology, Russian Academy of Sciences, Vladivostok, 690041 Russia. inmarbio@mail.primorye.ru |
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Abstract: | We examined differentiation of three sympatric charr species Dolly Varden charr Salvelinus malma Walbaum, white-spotted charr S. leucomaenis Pallas, and Levanidov charr S. levanidovi Chereshnev, Scopetz, Gudkov. Using restriction fragment length polymorphism analysis (RFLP), three mitochondrial DNA fragments (ND1/ND2, ND5/ND6, and Cytb/D-loop) amplified in PCR were compared. The divergence of mtDNA nucleotide sequences between S. levanidovi and S. leucomaenis was about 9.7%, between S. levanidovi and S. malma, 8.7%, and between S. malma and S. laecomaenis, 7.5%. These results indicate genetic isolation of the species examined and support the earlier suggestion on closeness of Levanidov charr to the common ancestor of the genus Salvelinus. |
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