| 胡玉婷， 江 河， 胡 王， 潘庭双， 段国庆， 凌 俊.安徽长江水系黄鳝的群体遗传结构分析[J].广东农业科学,2015,42(1):113-118 |
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安徽长江水系黄鳝的群体遗传结构分析 |
| Population genetic structure analysis of Monopterus albus from Anhui reaches in the Yangtze River |
| 投稿时间：2014-07-23 |
| DOI： |
| 中文关键词: 黄鳝 控制区 长江 群体遗传结构 |
| 英文关键词: Monopterus albus control region the Yangtze River population genetic structure |
| 基金项目: |
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| 中文摘要: |
| 为研究安徽长江水系黄鳝（Monopterus albus）的遗传多样性和群体遗传结构，测定了其 6 个地理群体（当涂、无为、繁昌、贵池、怀宁和望江）共 178 尾个体的线粒体 DNA 控制区部分序列。对其长度为 556~558 bp 的控制区同源序列进行分析，共检测到变异位点 41 个（变异率 7.35%），单倍型 56 种。平均单倍型多样性和核苷酸多样性分别为0.694~0.954、0.00237~0.01382。群体分化指数（Fst）和基因流（Nm）分别为0.01974~0.87529、0.07124~24.82928，分子变异分析（AMOVA）中，群体间遗传变异占 61.72%，表明黄鳝群体间具有明显的遗传分化。基于单倍型或群体间遗传距离的分子系统进化树均显示，6 个地理群体分为两支：当涂与繁昌群体聚为一支，其余 4 群体聚为另一支。 |
| 英文摘要: |
| To assess the genetic diversity and population structure of Monopterus albus, 178 individuals of 6
populations (DT, WW, FC, GC, HN, WJ) from Anhui reaches in the Yangtze River were investigated based on 556-558 bp
nucleotide sequences of mtDNA partial control region. The sequences analysis results showed that 41 variable sites
(mutation rates of 7.35%), 56 haplotypes were detected. The haplotype diversity (Hd) and nucleotide diversity (Pi) were
0.694-0.954 and 0.00237-0.01382, respectively. Analysis of molecular variance (AMOVA) revealed that genetic variation
among the populations was 61.72%. These results indicated that there were significant genetic differentiations among
populations. NJ-tree based on haplotypes or genetic distances among populations showed that DT and FC populations were
clustered as one, and other 4 population was as another independent cluster. |
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