Phylogeographic Patterns of Microtus fortis (Arvicolinae: Rodentia) in China Based on Mitochondrial DNA Sequences
文献类型： 外文期刊
作者： Gao, Jun 1 ; Yue, Liang-Liang 4 ; Jiang, Xianhuan 1 ; Ni, Liju 5 ; Ashraf, Muhammad Aqeel 6 ; Zhou, Yuxun 1 ; Li, Kai; 1 ;
作者机构： 1.Donghua Univ, Coll Chem Chem Engn & Biotechnol, Shanghai 201620, Peoples R China
2.Shanghai Acad Agr Sci, Inst Anim Husb, Shanghai 201106, Peoples R China
3.Shanghai Acad Agr Sci, Inst Vet Sci, Shanghai 201106, Peoples R China
4.Southwest Forestry Univ, Natl Plateau Wetland Res Ctr, Kunming 650224, Yunnan, Peoples R China
5.Shanghai Lab Anim Res Ctr, Shanghai 201203, Peoples R China
6.Univ Malaysia Sabah, Fac Sci & Nat Resources, Kota Kinabalu Sabah 88400, Malaysia
关键词： Microtus fortis; cytochrome b gene; D-loop on mitochondrial DNA; Phylogeographic patterns
期刊名称：PAKISTAN JOURNAL OF ZOOLOGY （ 影响因子：0.831； 五年影响因子：0.768 ）
ISSN： 0030-9923
年卷期： 2017 年 49 卷 4 期
页码：
收录情况： SCI
摘要： To examine the phylogeographic relationships of Microtus fortis in China, we investigated 84 individuals collected from five populations. The mitochondrial cytochrome b gene (cyt b) and control region (CR) were sequenced and 49 haplotypes were observed. No shared haplotype was found among different geographic populations. High F-st values among the populations suggested that fragmentation of habitat has resulted in genetically distinct populations. The trees, inferred from maximum likelihood and Bayesian phylogenetic analysis, highly supported all the M fortis individuals clustering into one monophyletic lineage. Three main clades are recovered within M. fortis: (1) North group; (2) South group; and (3) GX group. The North Group distributed on the north side of Qinling Mountains-Huaihe river line as well as the South Group was on the south. It suggests this geographic barrier played an important role in differentiation of M. finis in China. Furthermore, the samples all from Southwest China in the GX group may be an example of 'refuge within refugia' in glacial period. According to our molecular clock analysis, the main clades of M. fortis divergence and separated time at around 0.77 +/- 0.64 million years ago (Mya) located in the Penultimate Glaciation. Divergences within the three clades taken place during the interglacial period between the Penultimate Glaciation and the Last Glaciation. Bayesian skyline plot indicates the effective population size of M. fortis had been experiencing a downward trend in the past decades, which may due to the habitats loss and environmental degradation.
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