Scholarlink

Abstract <p>The article presents the results of a morphogenetic analysis of <i>Coregonus tugun</i> from both the largest Siberian river basins (Lena, Yenisei, and Ob rivers) and smaller watercourses (Olenek, Anabar, and Pyasina rivers). The studied populations differ significantly in both meristic and plastic characters. However, the degree of differentiation between local populations exceeds the interpopulation differences of most other whitefishes, reflecting the ecological characteristics of the tugun as a schooling fish that does not typically undergo long migrations. Analysis of the <i>ND1</i> gene of mtDNA revealed that the tugun phylogenetic lineage represented by the Ob and Yenisei populations/forms is well differentiated from the lineage of the East Siberian populations/forms, which can be explained by the dispersal patterns of these alternative lineages in Siberia during the Lower Quaternary glaciations. The East Siberian populations/forms of tugun differ from the Ob–Yenisei populations/forms in a set of plastic characteristics and the abundance of unique ancient haplotypes.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Phylogeographical and Phylogenic Structure of the Tugun Coregonus tugun (Salmonidae) in the Large Siberian River Basins

  • 期刊论文

  • 发表日期：

    2026年6月23日

查看全文
  • N. A. Bochkarev,
  • D. S. Sendek,
  • E. I. Zuykova,
  • E. C. Zakharov,
  • L. A. Ushnitskaya,
  • E. V. Ivanov,
  • D. V. Politov,
  • M. M. Solovyev

摘要

Abstract

The article presents the results of a morphogenetic analysis of Coregonus tugun from both the largest Siberian river basins (Lena, Yenisei, and Ob rivers) and smaller watercourses (Olenek, Anabar, and Pyasina rivers). The studied populations differ significantly in both meristic and plastic characters. However, the degree of differentiation between local populations exceeds the interpopulation differences of most other whitefishes, reflecting the ecological characteristics of the tugun as a schooling fish that does not typically undergo long migrations. Analysis of the ND1 gene of mtDNA revealed that the tugun phylogenetic lineage represented by the Ob and Yenisei populations/forms is well differentiated from the lineage of the East Siberian populations/forms, which can be explained by the dispersal patterns of these alternative lineages in Siberia during the Lower Quaternary glaciations. The East Siberian populations/forms of tugun differ from the Ob–Yenisei populations/forms in a set of plastic characteristics and the abundance of unique ancient haplotypes.