Abstract
The nucleotide sequences of two regions of the mitochondrial genome (D-loop region and Cyt b gene) have been determined for the first time in sympatric charrs of the genus Salvelinus from Nachikinskoe Lake (Kamchatka Peninsula, Russia) and compared to mitochondrial DNA sequences deposited in Gen-Bank. The level of nucleotide differences in the two regions of mitochondrial DNA in these two sympatric charrs was found to be rather high (15–20 mutations). These results confirm the presence in Nachikinskoe Lake of two sympatric forms of charr representing two genetic groups: Arctic charr (Salvelinus alpinus complex) and Dolly Varden (S. malma complex).
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