Genetic diversity and variation of seven Chinese grass shrimp (Palaemonetes sinensis) populations based on the mitochondrial COI gene

We investigated the genetic diversity and variation of P. sinensis to verify the accuracy of previous research results, as well as to assess the risk of diversity decline in wild populations and provide data for artificial breeding

Yingying Zhao; Xiaochen Zhu; Ye Jiang; Zhi Li; Xin Li; Weibin Xu; Hua Wei; Yingdong Li; Xiaodong Li

2021

Scholarcy highlights

  • Chinese grass shrimp is an important species widely distributed throughout China, which is ecologically relevant and possesses ornamental and economic value
  • Sequence variation and genetic diversity 674 base pair sequences of the Cytochrome c oxidase subunit I gene was obtained for downstream analyses
  • The highest number of h, S, K, haplotype diversity, and π values were observed in the SL population, whereas the lowest values were observed in the DL population
  • The genetic variability of seven P. sinensis populations was assessed based on partial sequences of the COI gene
  • The result of spatial analysis of molecular variance analysis, haplotype network analysis, Ds, and Wright’s fixation index among pairs of populations suggested that the JN population was distinctive from the other six populations, which was due to long-term geographic separation
  • Populations with low genetic diversity can be recovered by releasing shrimp from adjacent populations, and unnecessary cross-basin introduction should be avoided to preserve the local genetic resources

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