This study presents the data of the first molecular genetic analysis of the Siberian sucker from Kolyma River. Polymorphism of the mtDNA cytochrome oxidase 1 gene was established. Comparative sequence analysis of the gene examined and the GenBank variants characterizing suckers from the rivers of Canada enabled the suggestion that the sucker penetrated to Asia from North America approximately at the end of Early and the beginning of the Middle Pleistocene. It was demonstrated that intrapopulation genetic variation in the Siberian sucker accounted for 11.63% of total variation, while the proportion of the inter-group component (F st) constituted 88.37%. It seems likely that a considerable proportion of intergroup variation was caused by the long period of isolation of the Siberian sucker in Kolyma River. The prevalence of one common haplotype, CH-COI 1, in the sample examined indicates that the founder effect played an important role in the history of the formation of the Kolyma population.
Russian Journal of Genetics – Springer Journals
Published: Oct 23, 2014
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