Multilocus phylogeny of talpine moles (Talpini, Talpidae, Eulipotyphla) and its implications for systematics
Multilocus phylogeny of talpine moles (Talpini, Talpidae, Eulipotyphla) and its implications for systematics
复制标题
鼹鼠（Talpini、Talpidae、Eulipotyphla）的多位点系统发育及其对系统学的影响
DOI：
10.1016/j.ympev.2013.10.002
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发表时间：
2014-01-01
影响因子：
4.1
通讯作者：
Campbell, Kevin L.
中科院分区：
文献类型：
--
作者：
He, Kai;Shinohara, Akio;Campbell, Kevin L.
Talpini部落是一群严格分布在欧亚大陆的地下鼹鼠，其系统发育关系和分类学尚未解决。在这里，我们报告了一个多位点的核线粒体DNA数据集（9468 bp），从11个高山族物种，包括所有五个公认的属，连同分析他们的分歧时间和进化的亲和力推断最大似然和贝叶斯方法。我们的结果很好地解决了所有的关系，除了根的四个公认的亚洲属，这是姐妹属Talpa。关于亚洲分支，我们还提供了第一个分子支持的姐妹分类群之间的关系Parascaptor和Scaptochirus，并确认属Eurocaptor是并系。此外，尽管样本量相对较小（22个标本），我们的物种划界分析支持存在至少两个遗传上不同的，因此潜在的神秘物种。综上所述，这些发现表明，应给予E。mizura，说明中国西南山区和东南亚Talpini族的分类多样性被低估了。最后，我们的分歧时间分析的结果支持快速辐射的亚洲特有属在晚中新世，这在时间上对应于增强的干旱和冷却所产生的显着隆起的喜马拉雅-青藏高原。(C)2013 Elsevier Inc. All rights reserved.
The tribe Talpini is a group of strictly subterranean moles distributed across the Eurasian Continent whose phylogenetic relationships and taxonomy remain unresolved. Here we report a multi-locus nuclear-mitochondrial DNA dataset (9468 bp) from 11 talpine species encompassing all five recognized genera, together with analyses of their divergence times and evolutionary affinities inferred from maximum likelihood and Bayesian approaches. Our results finely resolved all relationships except the root of the four recognized Asian genera, which was placed sister to the genus Talpa. With respect to the Asian clade, we moreover provide the first molecular support for a sister-taxon relationship between Parascaptor and Scaptochirus and confirm that the genus Euroscaptor is paraphyletic. Further, and despite a relatively small sample size (22 specimens), our species delimitation analyses support the existence of at least two genetically distinct, and hence potentially cryptic species. Taken together, these findings argue that generic status should be given to E. mizura and illustrate that the taxonomic diversity of the tribe Talpini in mountainous regions of southwestern China and Southeast Asia is underestimated. Finally, results of our divergence time analyses support a rapid radiation of the endemic Asian genera in the late-Miocene, which temporally corresponds with enhanced aridity and cooling arising from a significant uplift of the Himalayan-Tibetan plateau. (C) 2013 Elsevier Inc. All rights reserved.