Molecular phylogenetic characterization of common murine rodents from Manipur, Northeast India
Molecular phylogenetic characterization of common murine rodents from Manipur, Northeast India
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DOI：
10.1266/ggs.90.21
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发表时间：
2015-02-01
影响因子：
1.1
通讯作者：
Suzuki, Hitoshi
中科院分区：
文献类型：
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作者：
Chingangbam, Dhananjoy S.;Laishram, Joykumar M.;Suzuki, Hitoshi
印度次大陆和东南亚是鼠类生物多样性的热点地区，但没有从若开山系统，划定这两个地区之间的边界物种进行了分子系统发育分析。我们检测了6种鼠的线粒体细胞色素B基因序列（Rattus rattus species complex，R. norvegicus、河（R. nitidus，Berylmys manipulus，Niviventer sp.和Mus musculus），来自曼尼普尔，它位于山脉的西麓。序列B.与数据库中可用的同源序列不同，序列差异为10- 15%。在R. nitidus和R.来自曼尼普尔的鼠种复合体，暗示该物种在该地区的古老栖息地，而R. norvegicus和M.肌肉，分别。在核基因Mc 1 r中，也分析了这里，R.来自曼尼普尔的家鼠种复合体显示具有与来自印度次大陆的家鼠种复合体以及来自东亚的家鼠种复合体相关的等位基因序列。这些结果不仅填补了空白的系统发育知识的每个类群的检查，但也提供了有价值的见解，以更好地了解若开山系统在产生的物种和遗传多样性的鼠类啮齿动物的地理学的重要性。
The Indian subcontinent and Southeast Asia are hotspots of murine biodiversity, but no species from the Arakan Mountain system that demarcates the border between the two areas has been subjected to molecular phylogenetic analyses. We examined the mitochondrial cytochrome b gene sequences in six murine species (the Rattus rattus species complex, R. norvegicus, R. nitidus, Berylmys manipulus, Niviventer sp. and Mus musculus) from Manipur, which is located at the western foot of the mountain range. The sequences of B. manipulus and Niviventer sp. examined here were distinct from available congeneric sequences in the databases, with sequence divergences of 10-15%. Substantial degrees of intrapopulation divergence were detected in R. nitidus and the R. rattus species complex from Manipur, implying ancient habitation of the species in this region, while the recent introduction by modern and prehistoric human activities was suggested for R. norvegicus and M. musculus, respectively. In the nuclear gene Mc1r, also analyzed here, the R. rattus species complex from Manipur was shown to possess allelic sequences related to those from the Indian subcontinent in addition to those from East Asia. These results not only fill gaps in the phylogenetic knowledge of each taxon examined but also provide valuable insight to better understand the biogeographic importance of the Arakan Mountain system in generating the species and genetic diversity of murine rodents.