Molecular phylogenetic relationships among Asiatic shrew-like moles inferred from the complete mitog

• 作 者: Feiyun Tu Bisong Yue Zhenxin Fan Robert W.Murphy Shunde Chen Xiuyue Zhang Yang Liu Zhiyu Sun Jiangrong Fu Shaoying Liu
• 机 构: Institute of Wildlife of Conservation,Jiangxi Academy of Forestry,Nanchang 330032,People's Republic
• 出 处: 第三届中国林业学术大会
• 发表日期: 2013年10期
• 关键词: Asiatic shrew-like moles phylogenetic relationships mitogenomes selection pressu

　　Asiatic shrew-like moles distribute almost entirely in southwest China; four of the five species of the genus Uropsilus,U.aequodonenia,U.andersoni,U.investigator and U.soricipes are endemic to China.The phylogenetic relationships of the Uropsilus species remain unclear and these preclude investigations of their potential adaptions for living in high altitudes.We sequenced the complete mitochondrial DNA genomes of three Asiatic shrew moles: U.aequodonenia,U.andersoni and U.investigator.Phylogenetic analyses of 16 published and our de novo mitogenomes yielded single,robust trees with the relationships being (U.soricipes (U.investigator (U.aequodonenia (U.andersoni,U.gracilis)))).The trees confirm that U.gracilis should not be assigned to genus Nasillus.Further,the trees verify the validity of recently described U.aequodonenia.Analyses of selection pressure suggest that the 13 mtDNA-encoding genes of species in genus Uropsilus all have experienced strong purifying selection and ATP8 have experienced relaxed selection pressure.The different mitochondrial protein-coding genes appear to have experienced independent selection pressures and this might provide an insight into the adaption of genus Uropsilus to different environments.