Ma Qingzhi, Li Lei, Lin Xiaowan, Jin Hongyu, Jin Xing, Ma Bo
Heilongjiang River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Harbin, P. R. China.
College of Life Science and Technology, Harbin Normal University, Harbin, P. R. China.
Mitochondrial DNA B Resour. 2020 Jan 7;5(1):368-369. doi: 10.1080/23802359.2019.1703576.
belongs to the family of Sisoridae, . It is distributed in the Yarlung Zangbo River, the Irrawaddy River, the Nujiang River, and the Lancang River in southwestern China. In this study, we first published the complete mitochondrial genome sequence of , which was 16,589 bp in length. This genome consists of 13 protein-coding genes (PCGs), 22 tRNA genes, two rRNA genes, and a non-coding A + T-rich region. The PCGs start with a traditional ATG except for COX1 and NAD3, which start with GTG and ATA instead, respectively, and end with stop codon TAA, TAG, TA, or a single T base. All tRNA have the typical clover-leaf structure. The phylogenetic tree of the whole mitogenome sequence is constructed by using neighbor-joining (NJ) method and the phylogenetic relationship among the family Sisoridae is further analyzed. We except to provide the theoretical basis for the further study of the phylogenetic relationship, taxonomic status, and conservation and management of genetic resources of Sisoridae catfishes.
属于鮡科。它分布于中国西南部的雅鲁藏布江、伊洛瓦底江、怒江和澜沧江。在本研究中,我们首次公布了其完整的线粒体基因组序列,长度为16,589 bp。该基因组由13个蛋白质编码基因(PCGs)、22个tRNA基因、两个rRNA基因和一个非编码的富含A+T区域组成。除COX1和NAD3分别以GTG和ATA起始外,其他PCGs均以传统的ATG起始,并以终止密码子TAA、TAG、TA或单个T碱基结束。所有tRNA均具有典型的三叶草结构。利用邻接法(NJ)构建了整个线粒体基因组序列的系统发育树,并进一步分析了鮡科之间的系统发育关系。我们期望为鮡科鲶鱼的系统发育关系、分类地位以及遗传资源的保护和管理的进一步研究提供理论依据。