Yang Chengzhong, Hao Haibang, Liu Shaoying, Liu Yang, Yue Bisong, Zhang Xiuyue
Key Laboratory of Bioresources and Ecoenvironment-Ministry of Education, Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University, Chengdu 610045, P.R. China.
Mitochondrial DNA. 2012 Apr;23(2):131-3. doi: 10.3109/19401736.2012.660926. Epub 2012 Mar 7.
The Chinese oriental vole (Eothenomys chinensis) belongs to subfamily Arvicolinae, which is endemic to the mountains in southwest China. E. chinensis and other Arvicoline species display a number of features that make them ideal for evolutionary studies of speciation and the role of Quaternary glacial cycles on diversification. In this study, the complete mitochondrial genome of E. chinensis was sequenced. It was determined to be 16,362 bases. The nucleotide sequence data of 12 heavy-strand protein-coding genes of E. chinensis and other 19 rodents were used for phylogenetic analyses. Trees constructed using three different phylogenetic methods (Bayesian, maximum parsimony, and maximum likelihood) showed a similar topology demonstrating that E. chinensis was clustered in subfamily arvicolinae--formed a solid monophyletic group being sister to the subfamily Cricetinae. And the trees also suggested that E. chinensis is a sister to the genus Microtus and Proedromys.
中华东方田鼠（Eothenomys chinensis）属于田鼠亚科，是中国西南部山区特有的物种。中华东方田鼠和其他田鼠亚科物种具有许多特征，使其成为物种形成进化研究以及第四纪冰川周期对物种多样化作用研究的理想对象。在本研究中，对中华东方田鼠的完整线粒体基因组进行了测序。其长度为16362个碱基。利用中华东方田鼠12个重链蛋白编码基因的核苷酸序列数据以及其他19种啮齿动物的数据进行了系统发育分析。使用三种不同系统发育方法（贝叶斯法、最大简约法和最大似然法）构建的树显示出相似的拓扑结构，表明中华东方田鼠聚类在田鼠亚科中——形成了一个坚实的单系群，是仓鼠亚科的姐妹群。这些树还表明，中华东方田鼠是田鼠属和原田鼠属的姐妹种。
