Genetic features of the island populations of sockeye salmon Oncorhynchus nerka (Walbaum, 1792) in Russian part of the species range
https://doi.org/10.15853/2072-8212.2023.71.34-46
Abstract
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.
Keywords
Supporting agencies: the work was carried out under the state assignment of FSBSI VNIRO and supported by a grant from the Ministry of Education and Science of the Russian Federation (Agreement No. 075-15-2021-1084).
About the Authors
O. A. Pilganchuk
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Oksana A. Pilganchuk
Petropavlovsk-Kamchatsky
M. V. Krupeneva
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Mariya V. Krupeneva
Petropavlovsk-Kamchatsky
U. O. Muravskaya
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Ulyana O. Muravskaya
Petropavlovsk-Kamchatsky
V. V. Savenkov
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Vladimir V. Savenkov
Petropavlovsk-Kamchatsky
A. D. Denisenko
Kamchatka Branch of Russian Federal Research Institute of Fisheries and Oceanography (KamchatNIRO)
Russian Federation
Russian Federation
Anastasiya D. Denisenko
Petropavlovsk-Kamchatsky
D. A. Zelenina
Russian Federal Research Institute of Fisheries and Oceanography (VNIRO)
Russian Federation
Russian Federation
Darya A. Zelenina
Moscow
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For citations:
Pilganchuk O.A., Krupeneva M.V., Muravskaya U.O., Savenkov V.V., Denisenko A.D., Zelenina D.A. Genetic features of the island populations of sockeye salmon Oncorhynchus nerka (Walbaum, 1792) in Russian part of the species range. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2023;(71):34-46. (In Russ.) https://doi.org/10.15853/2072-8212.2023.71.34-46
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