Differentiation of the frog sculpin Myoxocephalus stelleri Tilesius, 1811 (Actinopterygii, Cottidae) based on mtDNA and karyotype analyses.

ABSTRACT: A molecular genetic and karyological study of the frog sculpin Myoxocephalus stelleri Tilesius, 1811 was carried out on an extensive sample from a large area of the species' range. A total of 42 specimens was sampled from the Sea of Japan, Sea of Okhotsk, and coastal waters off the southern Kuril Islands, which makes this sampling scheme the most comprehensive to date. The level of mtDNA polymorphism was found to be low. The haplotypes of the species formed three phylogenetic groups. The unique M. stelleri haplotype from the coast of Shikotan Island linked all the studied groups, indicating that it is likely ancestral. Robertsonian polymorphism was identified in the species. In all five cytotypes (I - 2n = 44, II - 2n = 43, III - 2n = 42, IV - 2n = 41, V - 2n = 40; NF = 44+2)

SUBMITTER: Moreva IN 

PROVIDER: S-EPMC8217076 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature