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Issue:ISSN 1000-7083
          CN 51-1193/Q
Director:Sichuan Association for Science and Technology
Sponsored by:Sichuan Society of Zoologists; Chengdu Giant Panda Breeding Research Foundation; Sichuan Association of Wildlife Conservation; Sichuan University
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Your Position :Home->Past Journals Catalog->2019 Vol.38 No.4

Population Genetic Structure of Platorchestia japonica From Beijing and Its Adjacent Regions Based on COⅠ Gene Sequences
Author of the article:CUI Xinyu1, LIU Hongguang2, LI Shuqiang2*
Author's Workplace:1. The High School Affiliated to Renmin University of China, Beijing 100080, China;
2. Key Laboratory of Zoological Systematics and Evolution, Institute of Zoology, Chinese Academy of Sciences, Beijing 100101, China
Key Words:Platorchestia japonica; COⅠ; phylogeny; genetic structure; genetic diversity
Abstract:Crustaceans of Platorchestia japonica have been investigated for their suitability to serve as indicators for the quality of water bodies, since they normally live along rivers and lakes. This study intends to explore the population genetics of P. japonica around Beijing and its adjacent regions. The mitochondrial COⅠ genes of 128 P. japonica individuals collected from 22 sampling sites were sequenced. Polymorphism analysis of P. japonica COⅠ gene showed that there were 567 conserved sites, 56 variable sites, and 38 parsimony informative sites. Genetic diversity analysis discovered 43 haplotypes, with haplotype diversity of 0.938 and nucleotide diversity of 0.011 72. Phylogenetic analyses using Maximum Likelihood, Bayesian methods and network analyses revealed that the haplotypes of P. japonica showed no apparent phylogeographic structure, but all haplotypes clustered into 2 clades. The results of molecular variance analyses approved that the genetic variation among the clades of P. japonica was significantly higher than that within clades, with a Fst value of 0.852 19. These findings provide a scientific basis for further studying the genetic structure of P. japonica in China.
2019,38(4): 402-407 收稿日期:2018-09-29
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