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The complete mitochondrial genome of Microtus fortis calamorum (Arvicolinae, Rodentia) and its phylogenetic analysis

文献类型: 外文期刊

作者: Jiang, Xianhuan 1 ; Gao, Jun 1 ; Ni, Liju 2 ; Hu, Jianhua 2 ; Li, Kai 1 ; Sun, Fengping 3 ; Xie, Jianyun 2 ; Bo, Xiong 2 ; G 1 ;

作者机构: 1.Donghua Univ, Inst Biol Sci & Technol, Shanghai 201620, Peoples R China

2.Shanghai Lab Anim Res Ctr, Shanghai 201203, Peoples R China

3.Shanghai Acad Agr Sci, Inst Anim Husb & Vet Sci, Shanghai 201106, Peoples R China

关键词: Microtus fortis calamorum;Mitochondrial genome;Phylogenetic relationship

期刊名称:GENE ( 影响因子:3.688; 五年影响因子:3.329 )

ISSN:

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收录情况: SCI

摘要: Microtus fortis is a special resource of rodent in China. It is a promising experimental animal model for the study on the mechanism of Schistosome japonicum resistance. The first complete mitochondrial genome sequence for Microtus fortis calamorum, a subspecies of M. fortis (Arvicolinae, Rodentia), was reported in this study. The mitochondrial genome sequence of M. f. calamorum (Genbank: JF261175) showed a typical vertebrate pattern with 13 protein coding genes, 2 ribosomal RNAs, 22 transfer RNAs and one major noncoding region (CR region).The extended termination associated sequences (ETAS-1 and ETAS-2) and conserved sequence block 1 (CSB-1) were found in the CR region. The putative origin of replication for the light strand (O L) of M. f. calamorum was 35bp long and showed high conservation in stem and adjacent sequences, but the difference existed in the loop region among three species of genus Microtus. In order to investigate the phylogenetic position of M. f. calamorum, the phylogenetic trees (Maximum likelihood and Bayesian methods) were constructed based on 12 protein-coding genes (except for ND6 gene) on H strand from 16 rodent species. M. f. calamorum was classified into genus Microtus, Arvcicolinae for the highly phylogenetic relationship with Microtus kikuchii (Taiwan vole). Further phylogenetic analysis results based on the cytochrome b gene ranged from M. f. calamorum to one of the subspecies of M. fortis, which formed a sister group of Microtus middendorfii in the genus Microtus.

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