Cao Mengfei, Tang Ling, Chen Juan, Zhang Xiaoyu, Easy Russell H, You Ping
School of Life Sciences Shaanxi Normal University Xi'an China.
Department of Biology Acadia University Wolfville NS Canada.
Ecol Evol. 2020 May 13;10(12):5990-6000. doi: 10.1002/ece3.6338. eCollection 2020 Jun.
The complete mitogenome can provide valuable genetic information to reconstruct relationships between species. In this study, we sequenced a stone loach, (Teleostei: Nemacheilidae), which is found in the northern region of the Qinling Mountains in China. The size of the mitogenome is 16,570 bp, which contains 37 typical mitochondrial genes including 13 protein-coding genes, 22 transfer RNAs, two ribosomal RNAs, and a control region (D-loop) with a total AT content of 55.8%. This is similar to other Nemacheilidae sequences published in GenBank. Furthermore, a mito-phylogenomic analysis of 46 Nemacheilidae species places in a robust monophyletic cluster with other species. Our results contribute toward a better understanding of a true phylogeny of these species based on large-scale taxonomic samplings as well as to help grasp the evolution of fish mitogenomes.
完整的线粒体基因组可以提供有价值的遗传信息，以重建物种间的关系。在本研究中，我们对一种在中国秦岭北部地区发现的石爬鮡（硬骨鱼纲：平鳍鳅科）进行了测序。该线粒体基因组大小为16,570 bp，包含37个典型的线粒体基因，包括13个蛋白质编码基因、22个转运RNA、2个核糖体RNA和一个控制区（D环），总AT含量为55.8%。这与GenBank中公布的其他平鳍鳅科序列相似。此外，对46种平鳍鳅科物种的线粒体系统基因组分析将该物种与其他物种置于一个强大的单系类群中。我们的结果有助于基于大规模分类采样更好地理解这些物种的真实系统发育，并有助于掌握鱼类线粒体基因组的进化。
