title: Genetic variation analysis of Mugil cephalus in China sea based on mitochondrial COI gene sequences.
abstract: In this study, genetic diversity and population genetic structure of flathead grey mullet, Mugil cephalus, among four China Sea populations were investigated by COI sequences. All the populations studied had high values of haplotype and nucleotide diversity, except for the Yellow Sea population. In the phylogenetic tree, these haplotypes clustered in two groups, one for the populations from the Bohai and East China seas, and the other from the Yellow and South China seas. Analysis of molecular variance indicated that the northern populations (Bohai and East China) had lower genetic divergence (0.0725, P > 0.05) than that of the southern population (South China) (0.4530-0.6827, P < 0.001), suggesting that two distinct genetic groups exist in Chinese waters. Tests of neutral evolution and mismatch distribution indicated that no historical demographic expansion occurred in these populations. The results provide new information for genetic assessment, fishery management, and conservation of this species.
authors.affiliation: Key Laboratory of Marine and Estuarine Fisheries, Ministry of Agriculture, East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai, China.
authors.forename: Peng
authors.initials: P
authors.lastname: Sun
authors.forename: Zhao-hong
authors.initials: ZH
authors.lastname: Shi
authors.forename: Fei
authors.initials: F
authors.lastname: Yin
authors.forename: Shi-ming
authors.initials: SM
authors.lastname: Peng
mesh_terms: D000818:Animals; D002681:China; D016000:Cluster Analysis; D003247:Conservation of Natural Resources; D003576:Electron Transport Complex IV / Q000235:genetics*; D029941:Fish Proteins / Q000235:genetics*; D014644:Genetic Variation; D006239:Haplotypes; D016013:Likelihood Functions; D008928:Mitochondria / Q000201:enzymology* / Q000235:genetics; D009792:Oceans and Seas; D010802:Phylogeny; D058974:Phylogeography; D021122:Protein Subunits / Q000235:genetics; D017422:Sequence Analysis, DNA; D023701:Smegmamorpha / Q000235:genetics*
chemical_list: D029941:Fish Proteins; D021122:Protein Subunits; D003576:Electron Transport Complex IV