Differentiation of the Arctic Sculpin Myoxocephalus scorpioides (Fabricius, 1780) and its position among species of the genus Myoxocephalus (Cottidae)

IF 1.2 3区生物学 Q2 ZOOLOGY

Zoologischer Anzeiger Pub Date : 2025-01-01 DOI:10.1016/j.jcz.2024.12.008

Irina N. Moreva , Olga A. Radchenko , Anna V. Petrovskaya

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Abstract

The phylogenetic position of the Arctic Sculpin Myoxocephalus scorpioides from the East Arctic was determined using molecular genetics and karyological methods. This study presents the first data on the mitochondrial DNA genes of this species from the East Siberian Sea, whose haplotype contains 32 species-specific nucleotide substitutions. Moreover, it is the first to report the karyotype of the species, which is comprised of 42 chromosomes and 44 chromosome arms. Phylogenetic analysis revealed that the Arctic Sculpin is positioned in one of the two Myoxocephalus groups, together with Myoxocephalus quadricornis and Megalocottus platycephalus as well as with M. aenaeus and M. octodecemspinosus. The position of M. scorpioides confirms the non-monophyletic relationships of the genus Myoxocephalus. The results of this study indicate that the genera Myoxocephalus and Megalocottus need to be revised.

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来源期刊

Zoologischer Anzeiger 生物-动物学

CiteScore

2.80

自引率

7.10%

发文量

审稿时长

>12 weeks

期刊介绍： Zoologischer Anzeiger - A Journal of Comparative Zoology is devoted to comparative zoology with a special emphasis on morphology, systematics, biogeography, and evolutionary biology targeting all metazoans, both modern and extinct. We also consider taxonomic submissions addressing a broader systematic and/or evolutionary context. The overall aim of the journal is to contribute to our understanding of the organismic world from an evolutionary perspective. The journal Zoologischer Anzeiger invites suggestions for special issues. Interested parties may contact one of the editors.