Genetic diversity and population differentiation of the Chinese soft-shelled turtle (Pelodiscus sinensis) in three geographical populations
Genetic diversity and population differentiation of the Chinese soft-shelled turtle (Pelodiscus sinensis) in three geographical populations
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中华鳖三个地理种群的遗传多样性和种群分化
DOI：
10.1016/j.bse.2014.02.022
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发表时间：
2014-06-01
影响因子：
1.6
通讯作者：
Nie, Liuwang
中科院分区：
文献类型：
--
作者：
Bu, Xingjiang;Liu, Luo;Nie, Liuwang
中华软甲鱼（Pelodiscus sinensis）是世界上最重要的经济龟类之一。为了解中国华鳖的遗传变异，从3个地点采集了62只华鳖，利用18个多态微卫星位点对其遗传多样性和种群结构进行了分析。结果表明，野生中华白杨具有较高的遗传多样性。除芜湖种群外，其他两个种群的微卫星位点大部分不偏离Hardy-Weinberg平衡。AMOVA分析表明，遗传变异主要发生在群体内（97.4%）而不是群体间（2.6%）。3个地理种群间的基因流估计（Nm）表明存在较强的基因流（Nm > 1，平均6）。研究结果表明，不同的生境、不同的龟种、不同的父系关系和漫长的进化历史可能是造成野生华鳖遗传多样性和分化的原因。(C) 2014 Elsevier Ltd.版权所有。
The Chinese soft-shelled turtle (Pelodiscus sinensis) is one of the most important economical chelonians in the world. To understand the genetic variations of the Chinese soft-shelled turtle in China, 62 individuals were sampled from three localities and 18 polymorphic microsatellite loci tested were used to detect genetic diversity and population structure. Results showed that the genetic diversity of the wild P. sinensis was high. Except for the Wuhu populations, the majority of microsatellite loci are not deviation from Hardy-Weinberg equilibrium in the other two populations. AMOVA analysis indicated that genetic variations occurred mainly within populations (97.4%) rather than among populations (2.6%). The gene flow estimates (Nm) among three geographic populations demonstrated that strong gene flow existed (Nm > 1, mean 6). The present study supported that different habitats, breed turtles escaped, multiple paternity and long evolutionary history may be responsible for the current genetic diversity and differentiation in the wild Chinese soft-shelled turtle. (C) 2014 Elsevier Ltd. All rights reserved.