Scholarlink

<p>Wild Forest musk deer (FMD) has been declining due to continuing poaching and habitat loss. Although captive breeding has increased population numbers, maintaining genetic diversity in these farmed populations has become increasingly urgent and challenging due to depleted wild stocks and loss of genetic diversity from inbreeding in captive populations. Using samples from 683 individuals, we assessed mitochondrial genetic diversity (<i>ATP8-6</i>, <i>Cytb</i>, control region [CR]), structure, and maternal lineage patterns in a newly established <i>ex-situ</i> population (BB; founded 2019 with 44 breeders) and its three founding source populations (PZH, TZL, GL) in western China. Our results demonstrate that the <i>ex-situ</i> population maintains higher nucleotide diversity (π) in <i>ATP8-6</i> and <i>Cytb</i> than its source populations, while exhibiting comparable haplotype diversity (Hd). Phylogenetic and haplotype network analyses identified three maternal lineages across populations, with the <i>ex-situ</i> population containing representatives of all lineages and showing significant genetic differentiation from at least some founder groups, indicating the mixed-source introduction strategy successfully created a genetically distinct population. Neutrality tests and mismatch distributions suggested historical bottlenecks in baseline populations, whereas the <i>ex-situ</i> population showed signatures of recent admixture and expansion. These findings highlight the potential benefits of mixed-source introductions in enhancing genetic diversity during <i>ex-situ</i> conservation. We recommend long-term genetic monitoring and in-depth analysis of population history to refine translocation strategies and support the long-term viability of FMD under managed care.</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

Mixed-source introductions successfully enhance the genetic diversity of captive forest musk deer (Moschus berezovskii)

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年2月5日

查看全文
  • Xianna Lan,
  • Yichen Wang,
  • Yixin Li,
  • Haonan Zhang,
  • Zhengwei Luo,
  • Luyao Hai,
  • Han Jiang,
  • Yuhan Ma,
  • Wangshan Zheng,
  • Pengfei Luo,
  • Yu Zhang,
  • Defu Hu,
  • Xinghu Qin

摘要

Wild Forest musk deer (FMD) has been declining due to continuing poaching and habitat loss. Although captive breeding has increased population numbers, maintaining genetic diversity in these farmed populations has become increasingly urgent and challenging due to depleted wild stocks and loss of genetic diversity from inbreeding in captive populations. Using samples from 683 individuals, we assessed mitochondrial genetic diversity (ATP8-6, Cytb, control region [CR]), structure, and maternal lineage patterns in a newly established ex-situ population (BB; founded 2019 with 44 breeders) and its three founding source populations (PZH, TZL, GL) in western China. Our results demonstrate that the ex-situ population maintains higher nucleotide diversity (π) in ATP8-6 and Cytb than its source populations, while exhibiting comparable haplotype diversity (Hd). Phylogenetic and haplotype network analyses identified three maternal lineages across populations, with the ex-situ population containing representatives of all lineages and showing significant genetic differentiation from at least some founder groups, indicating the mixed-source introduction strategy successfully created a genetically distinct population. Neutrality tests and mismatch distributions suggested historical bottlenecks in baseline populations, whereas the ex-situ population showed signatures of recent admixture and expansion. These findings highlight the potential benefits of mixed-source introductions in enhancing genetic diversity during ex-situ conservation. We recommend long-term genetic monitoring and in-depth analysis of population history to refine translocation strategies and support the long-term viability of FMD under managed care.