俄罗斯地区红鲑鱼（Oncorhynchus nerka）（Walbaum，1792 年）岛屿种群的遗传特征

The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean Pub Date : 2024-03-06 DOI:10.15853/2072-8212.2023.71.34-46

O. Pilganchuk, M. V. Krupeneva, U. O. Muravskaya, V. V. Savenkov, A. Denisenko, D. Zelenina

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引用次数: 0

摘要

通过 7 个微卫星位点研究了库里尔群岛（伊图鲁普、乌鲁普、帕拉穆希尔、舒姆舒）和司令群岛（白令岛）的红鲑遗传多样性。在不同位点上观察到的杂合度平均估计值从 0.300 到 0.858 不等。遗传分化θst的一般估计值为15%，95%的置信引导区间为[10.40-21.18%]。根据 BOTTLENECK 1.2.02 程序得出的结果，可以确定所有岛屿种群都通过了 "瓶颈"。所有受检种群的独特属性和相互之间的显著差异均已显示。与大陆水体相比，千岛群岛和司令岛的红鲑种群内多样性水平明显较低，这通常是该物种分布区边缘种群的典型特征。

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Genetic features of the island populations of sockeye salmon Oncorhynchus nerka (Walbaum, 1792) in Russian part of the species range

Sockeye salmon genetic diversity in the Kuril Islands (Iturup, Urup, Paramushir, Shumshu) and the Commander Islands (Bering Island) was examined on 7 microsatellite loci. Average estimates of the heterozygocity observed on different loci vary from 0.300 to 0.858. General estimate of genetic differentiation θst is 15%, with a 95% confidence bootstrap interval [10.40–21.18%]. The results obtained in the program BOTTLENECK 1.2.02 made it possible to identify the passage of the “bottle neck” by all island populations. Unique properties and significant differences from each other are shown for allfivчe populations examined. The level of sockeye salmon intrapopulation diversity found in the Kuril and Commander Islands is significantly lower compared to that in the continental water bodies, what is generally typical for marginal populations of the species range.

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The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean

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