Population genetic diversity of mud crab (Scylla paramamosain) in Hainan Island of China based on mitochondrial DNA
文献类型: 外文期刊
作者: Ma, Hongyu 1 ; Ma, Chunyan 1 ; Ma, Lingbo 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Key Lab Marine & Estuarine Fisheries Resources &, Minist Agr, E China Sea Fisheries Res Inst, Shanghai 200090, Peoples R China
关键词: Mud crab;Scylla paramamosain;mtDNA;Genetic diversity;Hainan Island
期刊名称:BIOCHEMICAL SYSTEMATICS AND ECOLOGY ( 影响因子:1.381; 五年影响因子:1.351 )
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收录情况: SCI
摘要: In this paper, we analyzed population genetic diversity of Scylla paramamosain in Hainan Island of China based on COI gene sequence. Totally 92 individuals were collected from six localities: Haikou, Wenchang, Wanning, Sanya, Dongfang and Danzhou. A 761 bp fragment was sequenced, defining 32 different haplotypes. H4 was the most frequent haplotype, existing in all six localities, while the majority of haplotypes were rare ones, existing in only one or two individuals. Haplotype diversity (h) and nucleotide diversity (pi) ranged from 0.625 to 0.914 and from 0.001 to 0.003, with an average of 0.841 and 0.002, respectively. Genetic distance ranged from 0.001 to 0.003 within localities and from 0.002 to 0.003 between localities. The AMOVA analysis indicated a low level of genetic differentiation among six localities (F+_ST = 0.0176, P > 0.05). Neutrality tests and mismatch analysis implied a potential population expansion event for this crab species.
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