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<p>The Japanese Archipelago, characterized by wide climatic variation and predominantly mountainous topography, exhibits a high diversity of endemic taxa. Among these, the Japanese serow is an endemic ungulate. To investigate the diversification history, genetic structure, and genetic diversity of the Japanese serow, and to inform conservation units, we conducted population genetic analyses using mtDNA and 12 microsatellite markers. Phylogenetic analysis of mtDNA identified five clades broadly corresponding to geographic regions. STRUCTURE analysis of microsatellite data revealed five major clusters with additional fine-scale subdivision into 13 local clusters. Distinct spatial genetic patterns were observed, including northward range expansion, genetic discontinuities associated with the uplift of the Japanese Alps, and genetic boundaries corresponding to peninsular and insular regions. Overall, the genetic structure of Japanese serow populations appeared to have been shaped by past climatic changes, geographic factors, and human activities, including historical poaching. The discordance between mtDNA and microsatellite patterns, along with observed admixture, may reflect recent gene flow driven by male-biased dispersal, as well as population expansion associated with conservation efforts and environmental changes. Based on these results, evolutionarily significant units and management units were provisionally delineated to inform conservation strategies.</p>

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Population genetic structure of Japanese endemic ungulate Japanese serow (Capricornis crispus) based on mitochondrial DNA and microsatellite analyses

  • 期刊论文

  • 发表日期：

    2026年7月15日

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  • Asuka Yamashiro,
  • Takahiro Miura,
  • Kaneaki Edo,
  • Takaki Yamada,
  • Kunihiko Tokida,
  • Shin Nishida,
  • Tadashi Yamashiro

摘要

The Japanese Archipelago, characterized by wide climatic variation and predominantly mountainous topography, exhibits a high diversity of endemic taxa. Among these, the Japanese serow is an endemic ungulate. To investigate the diversification history, genetic structure, and genetic diversity of the Japanese serow, and to inform conservation units, we conducted population genetic analyses using mtDNA and 12 microsatellite markers. Phylogenetic analysis of mtDNA identified five clades broadly corresponding to geographic regions. STRUCTURE analysis of microsatellite data revealed five major clusters with additional fine-scale subdivision into 13 local clusters. Distinct spatial genetic patterns were observed, including northward range expansion, genetic discontinuities associated with the uplift of the Japanese Alps, and genetic boundaries corresponding to peninsular and insular regions. Overall, the genetic structure of Japanese serow populations appeared to have been shaped by past climatic changes, geographic factors, and human activities, including historical poaching. The discordance between mtDNA and microsatellite patterns, along with observed admixture, may reflect recent gene flow driven by male-biased dispersal, as well as population expansion associated with conservation efforts and environmental changes. Based on these results, evolutionarily significant units and management units were provisionally delineated to inform conservation strategies.