Genetic diversity and population structure of yellow catfish Pelteobagrus fulvidraco from five lakes in the middle and lower reaches of the Yangtze River, China, based on mitochondrial DNA control region
文献类型: 外文期刊
第一作者: Zhong, Liqiang
作者: Zhong, Liqiang;Wang, Minghua;Chen, Youming;Qin, Qin;Pan, Jianlin;Chen, Xiaohui;Song, Chao
作者机构:
关键词: Pelteobagrus fulvidraco;mitochondrial DNA;control region;genetic diversity;population genetics
期刊名称:MITOCHONDRIAL DNA ( 影响因子:0.925; 五年影响因子:0.994 )
ISSN:
年卷期:
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收录情况: SCI
摘要: Genetic diversity and population structure of yellow catfish Pelteobagrus fulvidraco were examined by using mitochondrial DNA control region sequences in 143 specimens sampled from five lakes in the middle and lower reaches of the Yangtze River, China; 151 polymorphic sites defined 72 distinct haplotypes. Haplotype diversity indices (0.903-0.953) and nucleotide diversity indices (0. 00378 - 0. 00970) demonstrated low genetic diversity of the yellow catfish populations in the five lakes. The analysis of molecular variance and the fixation index (F_(ST) = 0. 0896) revealed insignificant genetic difference between samples from different lakes. In addition, neutral tests and analysis of mismatch distribution suggested that yellow catfish might have undergone a population expansion. Neighbor-joining tree indicated a correlation between these population genetic differences and geographic distance. This study revealed the extant population genetic diversity and structure of the yellow catfish and was in favor of the related fishery management issues including fishery stock identification, conservation, and artificial breeding.
分类号: Q81
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