Huang Ting, Yan Chaochao, Tan Zheng, Tu Feiyun, Yue Bisong, Zhang Xiuyue
Sichuan Key Laboratory of Conservation Biology on Endangered Wildlife, College of Life Sciences, Sichuan University , Chengdu , P.R. China and.
Mitochondrial DNA. 2014 Aug;25(4):253-4. doi: 10.3109/19401736.2013.800490. Epub 2013 Jun 24.
The elegant water shrew (Nectogale elegans) belongs to the family Soricidae, and distributes in northern South Asia, central and southern China and northern Southeast Asia. In this study, the complete mitochondrial genome of N. elegans was sequenced. It was determined to be 17,460 bases, and included 13 protein-coding genes (PCGs), 22 tRNA genes, 2 ribosomal RNA genes and one non-coding region, which is similar to other mammalian mitochondrial genomes. Bayesian inference and maximum likelihood methods were used to construct phylogenetic trees based on 12 heavy-strand concatenated PCGs. Phylogenetic analyses further confirmed that Crocidurinae diverged prior to Soricinae, and Sorex unguiculatus differentiated earlier than N. elegans.
长尾水鼩鼱(Nectogale elegans)属于鼩鼱科,分布于南亚北部、中国中部和南部以及东南亚北部。在本研究中,对长尾水鼩鼱的完整线粒体基因组进行了测序。其长度为17460个碱基,包含13个蛋白质编码基因(PCGs)、22个tRNA基因、2个核糖体RNA基因和一个非编码区,这与其他哺乳动物的线粒体基因组相似。基于12个重链串联的PCGs,采用贝叶斯推断和最大似然法构建系统发育树。系统发育分析进一步证实,麝鼩亚科比鼩鼱亚科分化更早,而爪哇鼩鼱比长尾水鼩鼱分化更早。