Bachevskaja L T, Pereverzeva V V, Ivanova G D, Agapova G A
Genetika. 2014 Oct;50(10):1216-21.
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 intergroup, component (Fst) 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 importaht role in the history of the formation of the Kolyma population.
本研究展示了对科雷马河西伯利亚吸盘鳅进行首次分子遗传学分析的数据。确定了线粒体DNA细胞色素氧化酶1基因的多态性。对所检测基因与表征加拿大河流中吸盘鳅的GenBank变体进行比较序列分析后表明，大约在早更新世末期和中更新世初期，吸盘鳅从北美洲进入亚洲。结果表明，西伯利亚吸盘鳅种群内的遗传变异占总变异的11.63%，而组间成分（Fst）的比例为88.37%。组间变异的很大一部分可能是由西伯利亚吸盘鳅在科雷马河长期隔离造成的。在所检测样本中一种常见单倍型CH-COI 1的盛行表明，奠基者效应在科雷马种群形成历史中发挥了重要作用。
