The Genetic Diversity of Sinipercid Fishes Based on Complete Mitochondrial DNA of Six Sinipercid Fishes from Different Drainages in China
The Genetic Diversity of Sinipercid Fishes Based on Complete Mitochondrial DNA of Six Sinipercid Fishes from Different Drainages in China
复制标题
基于我国不同流域六种鳜鱼完整线粒体DNA的鳜鱼遗传多样性研究
DOI：
10.2174/1566524014666141202162058
复制
发表时间：
2014-01-01
影响因子：
2.5
通讯作者：
Zhang, J.
中科院分区：
文献类型：
--
作者：
Chen, D.;Li, Y.;Zhang, J.
华鲈科是东亚特有的一组鲈形目淡水鱼类，中国记录的种类最多。本研究分析了长江水系和珠江水系6个中华鲈种群的完整有丝分裂基因组的组织结构。在所分析的鱼类种群中，G的比例相对较低，仅为16.2%-16.5%。相似性和趋异性分析表明，不同水系的种群间的序列相似性大于同一水系内不同物种间的序列相似性。4株沙门氏菌的12个蛋白质编码基因（不包括ND6）的点突变率为0.39%，共检测到422个变异位点。scherzeri种群。进化关系分析表明，4个S.石嘴鱼种群可分为长江水系和珠江水系两个种群。研究结果为鱼类适应不同环境的遗传和进化状况以及渔业和水产养殖中鱼类的遗传保护和选择性繁殖提供了重要信息。
Sinipercids are a group of freshwater perciform fish endemic in East Asia with the majority of species recorded in China. In the present study, we analyzed the organizations of complete mitogenomes of the six sinipercid fish populations from the Yangtze River and the Pearl River systems in China. The proportion of G was relatively low just at 16.2%-16.5% among the fish populations analyzed. The similarity and divergence analysis showed that the populations from different drainages have more sequence similarities than those from different species in the same drainages. The rate of point mutation was 0.39% and a total of 422 variable sites were identified in the 12 protein-coding genes (excluding the ND6) among the four S. scherzeri populations. The analysis of evolutionary relationship showed that the four S. scherzeri populations can be divided into two groups of Yangtze River system and the Pearl River. Overall the data provide significant information for the genetic and evolutionary status of sinipercids upon adapting to different environments, and for genetic conservation and selective breeding of these fish species in fishery and aquaculture.