Characterization of the Complete Mitochondrial Genome of Arius dispar(Siluriformes: Ariidae) and Phylogenetic Analysis Among Sea Catfishes  

作　　者：CUI Lei DONG Yuelei CAO Rongbo ZHOU Xiaoyu LU Songhui 

机构地区：[1]Research Center of Harmful Algae and Marine Biology,Jinan University,Guangzhou 510632,China [2]Key Laboratory of Eutrophication and Red Tide Prevention of Guangdong Higher Education Institutes,Jinan University,Guangzhou 510632,China [3]Southern Marine Science and Engineering Guangdong Laboratory,Zhuhai 519000,China

出　　处：《Journal of Ocean University of China》2020年第5期1198-1206,共9页中国海洋大学学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos.41806127 and 41906111);the Natural Science Foundation of Guangdong Province (No.2018A030313956)。

摘　　要：The mitochondrial genome(mitogenome) was 16792 bp in length, containing 13 protein coding genes(PCGs), two rRNA genes(12 S rRNA and 16 S rRNA), 22 tRNA genes, and two main non-coding regions. Among these 37 genes, 28 genes were encoded on the heavy strand, while 9 genes were transcribed on the light strand. The non-coding regions of A. dispar included a control region, a light strand replication and another 11 intergenic spacers. The CR of A. dispar contained 8 conserved sequence blocks(CSBs), a termination-associated sequence(TAS) and a pyrimidine tract. Phylogenetic analysis based on 12 PCGs revealed that A. dispar was genetically closest to Arius arius. The families Schilbeidae, Claroteidae, Mochokidae, and Ariidae formed a closely evolved clade. Molecular information from this research introduces mitogenomice data of A. dispar and suggests the phylogenetic relationships among Siluriformes.

关 键 词：mitochondrial genome SILURIFORMES ARIIDAE Arius dispar PHYLOGENY 

分 类 号：Q953[生物学—动物学]