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.

中文翻译：

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Sculpins Myoxocephalus Gill（1859年，科科犬）的形核和分子遗传差异

摘要

进行了对Myoxocephalus属的杜鹃的核学和分子遗传学研究。分子遗传学分析表明，该属在现代组成中是异质的，分为太平洋和北极-大西洋两类。在太平洋基，密切的亲缘关系在物种之间发现M. stelleri，M. polyacanthocephalus，和M. jaok。北极-大西洋小组的代表，M。quadricornis是单型的，是Megalocottus platycephalus的姐妹。天蝎座的亲密关系根据分子遗传学和核学数据，揭示了太平洋集团的the子。对M. brandtii，M. ochotensis和M. jaok从其栖息地的不同部分进行的分析表明，没有核变异性。核型的太平洋物种发散的程度和方向M.田鼠，M. ochotensis，M. jaok，M. polyacanthocephalus，M. stelleri，和M.天蝎座成立。