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Complete mitochondrial DNA sequence, gene organization and genetic variation of control regions in Parargyrops edita

文献类型： 外文期刊

作者： Xia, Junhong 1 ; Xia, Kuaifei 2 ; Gong, Jinbo 2 ; Jiang, Shigui 2 ;

作者机构： 1.Chinese Acad Fishery Sci, S China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

2.Chinese Acad Fishery Sci, S China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China; Chinese Acad Sci, S China Inst Bot, Guangzhou 510650, Peoples R China

关键词： genetic variation

期刊名称：FISHERIES SCIENCE （ 影响因子：1.617； 五年影响因子：1.531 ）

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收录情况： SCI

摘要： The complete nucleotide sequence of the mitochondrial genome of Parargyrops edita was determined by gene amplification using long polymerase chain reaction and direct sequencing techniques. The genome with 16 640 bp contained 37 genes (two ribosomal RNA, 22 transfer RNA, and 13 protein-coding genes). The content and order of genes was identical to those in typical teleosts. The major non-coding region of 964 bp in length with several conserved sequence features were identified as the control region (CR). Both COI and ND4 began with a GTG start codon, which is unusual in other fishes. The genetic variation of the CR from 27 wild samples was evaluated. A total of 536 bp consensus sequence of CR was aligned and 26 unique haplotypes were identified. The haplotype diversity (h) was estimated to be 0.997 (standard deviation [SD] 0.011) and nucleotide diversity (s) was 0.014 (SD 0.008) for the sample collected from coastal waters of Guangdong Province. It showed a very high level of genetic variation in the sample and also suggested that mtDNA CR sequence analysis can be use to evaluate the genetic diversity and genetic structure of P. edita.

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