Special structure of mitochondrial DNA control region and phylogenetic relationship among individuals of the black rockfish, Sebastes schlegelii
文献类型: 外文期刊
作者: Zhang, Hui 1 ; Zhang, Yan 3 ; Zhang, Xiumei 2 ; Song, Na 1 ; Gao, Tianxiang 1 ;
作者机构: 1.Ocean Univ China, Inst Evolut & Marine Biodivers, Qingdao 266003, Peoples R China
2.Ocean Univ China, Coll Fisheries, Qingdao 266003, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Peoples R China
关键词: Sebastes schlegelii;control region;structure;phylogenetic relationship
期刊名称:MITOCHONDRIAL DNA ( 影响因子:0.925; 五年影响因子:0.994 )
ISSN:
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收录情况: SCI
摘要: This study deals with the structure of mitochondrial DNA (mtDNA) control region (CR) of the black rockfish, Sebastes schlegelii. Two termination-associated sequences (TASs), two complementary termination-associated sequences (cTASs), and conserved sequence block (CSB), such as CSB-F, CSB-E, CSB-D, CSB1, CSB2, and CSB3, were detected in S. schlegelii. The results indicated that the structures of these blocks are similar to most marine fishes, but it is special that there are two TASs and two cTASs in the CR of S. schlegelii. One conserved region was found from 450 bp to the end of the CR, which is also a special feature of S. schlegelii. All sequences of CSB1, CSB2, and CSB3 blocks are the consensus among different individuals, which is quite different from most vertebrates. In addition, the complete mtDNA CR sequences and the first 449 bp of the CR are used to analyze the phylogenetic relationships of S. schlegelii. The phylogenetic trees show a lack of genetic structure among individuals. This study also indicated a signal that the genetic diversity might be similar between the wild and cultured individuals, which may be helpful to the fisheries management.
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