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Comparative analysis of the complete mitochondrial genomes of two species of Clupeiformes and the phylogenetic implications for Clupeiformes

文献类型： 外文期刊

作者： Liu, Bingjian 1 ; Peng, Ying 1 ; Zhang, Kun 2 ; Liu, Yifan 1 ; Li, Jiasheng 1 ; Chen, Jian 1 ; Li, Xuepeng 3 ; Jin, Xun 1 ; Zheng, Sixu 1 ; Wang, Yunpeng 1 ; Zhang, Shufei 4 ; Gong, Li 1 ; Lu, Zhenming 1 ; Liu, Liqin 1 ;

作者机构： 1.Zhejiang Ocean Univ, Natl Engn Lab Marine Germpiasm Resources Explorat, Zhoushan 316022, Peoples R China

2.Hunan Normal Univ, Coiiege Life Sci, Changsha, Peoples R China

3.Yantai Univ, Sch Ocean, Yantai, Peoples R China

4.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

关键词： Clupeiformes; Ilisha elongata; mitochondrial genome; phylogenetic analysis; Setipinna tenuifilis

期刊名称：JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM （ 影响因子：1.559； 五年影响因子：1.694 ）

ISSN： 0025-3154

年卷期： 2022 年 102 卷 6 期

页码：

收录情况： SCI

摘要： The mitochondrial genome provides important information for phylogenetic analysis and an understanding of evolutionary origin. In this study, the mitochondrial genomes of Ilisha elongata and Setipinna tenuifilis were sequenced, which are typical circular vertebrate mitochondrial genomes composed of 16,770 and 16,805 bp, respectively. The mitogenomes of I. elongata and S. tenuifilis include 13 protein-coding genes (PCGs), 22 transfer RNA (tRNA), two ribosomal RNA (rRNA) genes and one control region (CR). Both two species' genome compositions were highly A + T biased and exhibited positive AT-skews and negative GC-skews. The genetic distance and Ka/Ks ratio analyses indicated that 13 PCGs were affected by purifying selection and the selection pressures were different from certain deep-sea fishes, which were most likely due to the difference in their living environment. Results of phylogenetic analysis support close relationships among Chirocentridae, Denticipitidae, Clupeidae, Engraulidae and Pristigasteridae based on the nucleotide and amino acid sequences of 13 PCGs. Within Clupeoidei, I. elongata and S. tenuifilis were most closely related to the family Pristigasteridae and Engraulidae, respectively. These results will help to better understand the evolutionary position of Clupeiformes and provide a reference for further phylogenetic research on Clupeiformes species.

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