Scholarlink

Abstract <p>We present the first molecular-genetic analyses of <i>Acheilognathus chankaensis</i> free embryos floodplain lake of the Razdolnaya River basin (Primorsky region, Russia). Examination of 115 <i>Nodularia douglasiae</i> individuals revealed 24 infested bivalves hosting 219 free embryos (length 3–5 mm). Genetic analysis of 23 specimens via <i>cox1</i> mtDNA sequencing confirmed identity with <i>A.</i> <i>chankaensis</i> populations from Northeast China and South Korea. Phylogenetic reconstruction (Bayesian inference, maximum parsimony, maximum likelihood) of six Acheilognathinae genera resolved nine generic groups and two distinct lineages of <i>A.</i>&#xa0;<i>chankaensis</i>: sensu stricto (11 haplotypes in haplogroups A1 (Primorye−Korea−Heilongjiang) and A2 (Yangtze basin)) and a polyphyletic <i>A. chankaensis</i> sensu lato group. Our results demonstrate possible post-glacial dispersal patterns via connected drainages (haplogroup A1), ancient vicariance in South China (haplogroup A2), and taxonomic discordance requiring revision of <i>A. chankaensis</i> s.l.</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

Integrative Taxonomy of the Khanka Spiny Bitterling Acheilognathus chankaensis (Acheilognathidae) in the Russian Far East: Cryptic Diversity and Phylogeographic Patterns

  • 期刊论文

  • 发表日期：

    2026年4月20日

查看全文
  • K. S. Vainutis,
  • A. N. Voronova,
  • R. A. Maximov,
  • V. V. Bogatov

摘要

Abstract

We present the first molecular-genetic analyses of Acheilognathus chankaensis free embryos floodplain lake of the Razdolnaya River basin (Primorsky region, Russia). Examination of 115 Nodularia douglasiae individuals revealed 24 infested bivalves hosting 219 free embryos (length 3–5 mm). Genetic analysis of 23 specimens via cox1 mtDNA sequencing confirmed identity with A. chankaensis populations from Northeast China and South Korea. Phylogenetic reconstruction (Bayesian inference, maximum parsimony, maximum likelihood) of six Acheilognathinae genera resolved nine generic groups and two distinct lineages of A. chankaensis: sensu stricto (11 haplotypes in haplogroups A1 (Primorye−Korea−Heilongjiang) and A2 (Yangtze basin)) and a polyphyletic A. chankaensis sensu lato group. Our results demonstrate possible post-glacial dispersal patterns via connected drainages (haplogroup A1), ancient vicariance in South China (haplogroup A2), and taxonomic discordance requiring revision of A. chankaensis s.l.