Xu Jing-Cheng, Peng Li-Fang, Chen Yan-Rong, Yang Dian-Cheng, Wu Qi-Neng, Weng Shi-Yang, Zhang Yong, Huang Song
College of Life and Environment Sciences, Huangshan University, Huangshan, China.
School of Sciences, Tibet University, Lahsa, China.
Mitochondrial DNA B Resour. 2018 Oct 27;3(2):1200-1202. doi: 10.1080/23802359.2018.1524275.
The Chinese giant salamander (CGS), (Amphibian, Caudata, Cryptobranchidae), is endemic to China. After overhunting in the 1990's, it is very difficult to find the CGS in the wild. Due to mating disorder, the captive breeding population is genetically confounded. The genetic backgrounds of all wild-release individuals in China are not explicit. Herein, we reported four living wild-type complete mitochondrial genomes of this species. The gene order and contents are identical to those found in typical vertebrates. Thirteen protein-coding genes (PCGs) of 7 . (4 from this study, 3 retrieved from GenBank) and 11 other closely species retrieved from GenBank were used to reconstruct phylogenetic tree. The Maximum likelihood (ML) topology shown that the clade of CGS has two subclades with a high support (100%). This study provides partial fundamental information for further exploring the true genetic background of whole population of . .
中国大鲵（CGS）（两栖纲，有尾目，隐鳃鲵科）是中国特有的物种。在20世纪90年代过度捕猎之后，很难在野外发现中国大鲵。由于交配紊乱，圈养繁殖群体的基因组成混乱。中国所有放归野外个体的遗传背景都不明确。在此，我们报道了该物种4个存活的野生型完整线粒体基因组。基因顺序和内容与典型脊椎动物中的相同。使用来自7个个体（本研究中的4个，从GenBank检索到的3个）的13个蛋白质编码基因（PCGs）以及从GenBank检索到的11个其他近缘物种来重建系统发育树。最大似然（ML）拓扑结构表明，中国大鲵的进化枝有两个亚进化枝，支持率很高（100%）。本研究为进一步探索中国大鲵整个种群的真实遗传背景提供了部分基础信息。
