Abstract
We have performed a comparative analysis of complete mitochondrial genomes variability of the endemic charr Salvelinus sp. 4 from Lake Nachikinskoe (Kamchatka, Russia) and closely related charrs of Asia and North America. Results of the phylogenetic analysis of their complete mitochondrial genomes confirm the close relationships between Salvelinus sp. 4 and S. alpinus erythrinus from North America (NWT) and indicate that these taxa represent the Arctic phylogenetic group of the Taranetz charr, Salvelinus taranetzi. New evidence has been obtained that the population of Salvelinus sp. 4 from Lake Nachikinskoe is an isolated population of S. taranetzi. Assuming the common origin of Salvelinus sp. 4 and S. a. erythrinus from geographically isolated populations, we have estimated the divergence of complete mitochondrial genomes that emerged due to the fragmentation of their common ancestor’s range.
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ACKNOWLEDGMENTS
The authors dedicate this paper to the memory of the outstanding ichthyologist Igor Aleksandrovich Chereshnev and are deeply grateful to S.V. Frolov and J.-S. Moore who kindly granted specimens/DNA preparations of the genus Salvelinus to upgrade the collection of the Genetics Laboratory, Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences.
Funding
The study was supported by the Russian Foundation for Basic Research (project no. 20-04-00205).
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Translated by E. Shvetsov
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Oleinik, A.G., Kukhlevsky, A.D. & Skurikhina, L.A. The Relationships of the Charrs Salvelinus sp. 4 (Salmoniformes: Salmonidae) from Lake Nachikinskoe, Kamchatka, as Inferred from Complete Mitochondrial Genome Analysis. Russ J Mar Biol 48, 55–59 (2022). https://doi.org/10.1134/S1063074022010084
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DOI: https://doi.org/10.1134/S1063074022010084