Abstract
Karyological and molecular genetic study of the sculpins of the genus Myoxocephalus is conducted. Molecular genetic analysis demonstrates that the genus is heterogeneous in the contemporary composition and is divided into Pacific and Arctic-Atlantic groups. In the Pacific group, a close phylogenetic relationship is found between the species M. stelleri, M. polyacanthocephalus, and M. jaok. The representative of the Arctic-Atlantic group, M. quadricornis, is monotypic and sister to Megalocottus platycephalus. Close relations of M. scorpius and the sculpins of the Pacific group are revealed on the basis of the molecular genetic and karyological data. Analysis of M. brandtii, M. ochotensis, and M. jaok from different parts of their habitats shows the absence of karyological variability. The degree and direction of the divergence of the karyotypes in Pacific species M. brandtii, M. ochotensis, M. jaok, M. polyacanthocephalus, M. stelleri, and M. scorpius are established.
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This study was supported by the Far East Program (project no. 18-4-002).
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Radchenko, O.A., Moreva, I.N. & Petrovskaya, A.V. Karyological and Molecular Genetic Divergence of Sculpins Myoxocephalus Gill, 1859 (Cottidae). Russ J Genet 56, 1212–1223 (2020). https://doi.org/10.1134/S1022795420100117
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DOI: https://doi.org/10.1134/S1022795420100117