Yu Ya Khrunyk, V D Bogdanov, L E Yalkovskaya, A R Koporikov, S B Rakitin, P A Sibiryakov, A V Borodin
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引用次数: 0
摘要
基于mtDNA控制区(407 bp)高变片段的多态性,研究了生活在西伯利亚西部鄂河-伊尔齐斯河和塔兹河流域的burbot (Lota Lota L., 1758)的遗传变异。对134个鱼样本的分析发现了30个单倍型,其中23个是新的。在以前在欧亚大陆和北美发现的单倍型中,EB30在西伯利亚西部最常见(频率为45.5%)。本研究结果与前人的研究结果一致,表明生活在鄂额尔齐斯河流域和塔孜河流域的白令海陆桥白令海陆桥分支(命名亚种L. L. lota)的白令海陆桥白令海陆桥分支的遗传分化。然而,西伯利亚西部burbot的高度遗传多样性,以及研究区域内burbot群体的相对高度分化,表明burbot种群具有区域特异性。
[The genetic diversity of burbot (Lota lota L., 1758) of Western Siberia (the analysis of the mtDNA control region polymorphism)].
The genetic variability of burbot (Lota lota L., 1758) inhabiting the Ob-Irtysh and Taz river basins in Western Siberia has been studied based on the polymorphism of the hypervariable fragment of mtDNA control region (407 bp). The analysis of 134 fish samples revealed 30 haplotypes, 23 of which were new. Among haplotypes, previously detected in Eurasia and North America, EB30 was the most frequently found in Western Siberia (45.5% frequency). The results of our study are in agreement with previous research pointing to the genetic differentiation of two burbot subspecies, L. l. lota and L. l. maculosa, and indicate that burbot inhabiting the Ob-Irtysh and Taz river basins belong to the Eurasian-Beringian clade (nominative subspecies L. l. lota). However, a high genetic diversity of burbot in Western Siberia, along with a relatively high differentiation of burbot groups within studied territory, points to a regional specificity of burbot population.