BIOLOGIYA MORYA, 2017, Vol. 43, No. 6, pp. 453-456

The lactate dehydrogenase gene LDH-C1, a new molecular marker for phylogenetic analysis of salmonid fishes (Salmoniformes: Salmonidae)

© 2017 A. G. Oleinik¹, L. A. Skurikhina¹, A. D. Kukhlevsky^{1, 2}

¹A.V. Zhirmunsky Institute of Marine Biology, National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, Vladivostok 690041;
²Far Eastern Federal University, Vladivostok 690600

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We tested the locus of the nuclear lactate dehydrogenase gene (LDH-C1) as a phylogenetic marker in specimens of 11 salmonid genera (Thymallus, Coregonus, Hucho, Brachymystax, Salmo, Salmothymus, Acantholingua, Parahucho, Salvelinus, Parasalmo, and Oncorhynchus). All the sequences were veraciously clustered according to their taxonomic affiliation at the species and genus levels. It is shown that the used complex of characters contains a phylogenetic signal that represents specific information about the phylogenesis process. This allows us to recommend the LDH-C1 locus to specify the phylogeny of salmonids in the combined analysis of several independent nuclear genes and mitochondrial DNA.

Key words: lactate dehydrogenase, LDH-C1, phylogenetic marker type I, Salmonidae, Coregonidae, Thymallidae.