Comparison of genetic diversity and population structure of eight Macrobrachium nipponense populations in China based on D-loop sequences

文献类型： 外文期刊

第一作者： Zhang, Wenyi

作者： Zhang, Wenyi;Jiang, Sufei;Xiong, Yiwei;Jin, Shubo;Gong, Yongsheng;Wu, Yan;Qiao, Hui;Fu, Hongtuo;Salumy, Khamis Rabii;Xuan, Zhongya;Qiao, Hui;Fu, Hongtuo

作者机构：

关键词： Macrobrachium nipponense; Mitochondrial DNA D-loop; Genetic diversity; Genetic structure

期刊名称：AQUACULTURE REPORTS （ 影响因子：3.385； 五年影响因子：3.645 ）

ISSN： 2352-5134

年卷期： 2022 年 23 卷

页码：

收录情况： SCI

摘要： This study was performed by using D-loop region sequences to investigate genetic diversity and population structure across eight representative groups of M. nipponense from south to north China. Eight populations comprising a total of 144 individuals were from Songhua River (SHJ), Yellow River (HH), Yangtze River (YZ), Pearl River (ZJ), Weishan Lake (WSH), Taihu Lake (TH), Bosten Lake (BH) and Wanquan River (WQH). The 1130-bp D-loop region exhibited a higher content of A + T (79.04%) than C + G (20.95%). In addition, 239 variable sites and 73 haplotypes were detected. The population haplotype diversity (h) were ranked as follows: WQH (0.9810) YZ (0.9571) > WSH (0.9429) > ZJ (0.8901) > SHJ (0.8791) > HH (0.8693) > TH (0.8667) > BH (0.3684); the nucleotide diversity (pi) were ranked as: WQH (0.0607) > YZ (0.0299) > SHJ(0.0236) > WSH (0.0221) > TH(0.0132) > ZJ(0.0131) > HH(0.0118) > BH(0.0011). The pairwise FST values reached highly significant level (P < 0.01). The gene flow (Nm) results revealed abundant gene exchange between WSH and TH (11.057), HH (7.226) and ZJ (6.255). The maximum likelihood (ML) phylogenetic tree showed that 73 haplotypes were divided into two main branches. Only the haplotypes of the BH population clustered together, indicating the low genetic diversity of this population, whereas a high diversity was observed in other populations. Network results were consistent with phylogenetic tree results. The analysis of mismatch distribution showed that all eight populations presented multimodal distribution. Fu's Fs test and Tajima's D tests were applied to determine the population expansion. All eight populations showed non-significant negative values, which suggests that the M. nipponense population in China did not experience population expansion.

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[1]Genetic diversity and structure assessment of Macrobrachium nipponense populations: implications for the protection and management of genetic resources. Xiong, Yiwei,Jiang, Sufei,Zhang, Wenyi,Jin, Shubo,Gong, Yongsheng,Wu, Yan,Qiao, Hui,Fu, Hongtuo,Zhang, Lijuan,Wang, Jisheng,Qiao, Hui,Fu, Hongtuo. 2023

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