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Mitochondrial diversity and population structure of grass carp (Ctenopharyngodon idella) in the Pearl River after anthropogenic release

文献类型： 外文期刊

作者： Yang, Jiping 1 ; Li, Yuefei 1 ; Zhu, Shuli 1 ; Li, Xinhui 1 ; Li, Jie 1 ; Chen, Weitao 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Guangzhou, Peoples R China

2.Key Lab Aquat Anim Immune Technol Guangdong Prov, Guangzhou, Peoples R China

3.Guangzhou Sci Observing & Expt Stn Natl Fisheries, Guangzhou, Peoples R China

4.Expt Stn Sci Observat Fishery Resources & Environ, Zhaoqing, Peoples R China

关键词： Pearl River; grass carp; artificial release programs; genetic diversity; mitochondrial loci

期刊名称：KNOWLEDGE AND MANAGEMENT OF AQUATIC ECOSYSTEMS （ 影响因子：1.928； 五年影响因子：2.108 ）

ISSN： 1961-9502

年卷期： 2022 年 423 期

页码：

收录情况： SCI

摘要： The grass carp Ctenopharyngodon idella is a commercially relevant carp species with a long-term artificial release history in China. To date, several genetic diversity studies have been performed on the Yangtze River C. idella populations, but similar reports were sparse for the Pearl River populations. Here, our study explored the genetic diversity patterns and population structure of the Pearl River C. idella populations after human intervention using two mitochondrial loci. Phylogenetic analyses demonstrated that grass carp populations in the Pearl River exhibited two maternal genetic lineages. Haplotype networks demonstrated that most main Pearl River haplotypes were shared with those of the Yangtze River samples. No genetic structure was detected among the Pearl populations and low level of population differentiation was observed between individual Yangtze River populations and the Pearl River populations. These findings might be attributed to the high dispersal ability of grass carp, as well as anthropogenic release. Moreover, the nucleotide diversity of the Pearl River populations was higher than that of the Yangtze River, indicating that artificial release programs might have significant effects on the genetic diversity of the Pearl River populations. Taken together, our findings demonstrated artificial release programs may have influenced the Pearl River grass carp populations and provide important knowledge that may guide the future management of grass carp in the Pearl River.

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