Integrative systematic analyses of the genus Chodsigoa (Mammalia: Eulipotyphla: Soricidae), with descriptions of new species
Integrative systematic analyses of the genus Chodsigoa (Mammalia: Eulipotyphla: Soricidae), with descriptions of new species
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DOI：
10.1093/zoolinnean/zlw017
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发表时间：
2017-07-01
影响因子：
2.8
通讯作者：
Jiang, Xue-Long
中科院分区：
文献类型：
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作者：
Chen, Zhong-Zheng;He, Kai;Jiang, Xue-Long
鼩鼱属鼩鼱是中国最不为人所知的哺乳动物之一。我们对 47 个样本的 1 个线粒体基因和 2 个核基因进行了测序。利用博物馆藏品和 GenBank 的序列，我们整合了分子和形态测量方法来划定物种边界并估计系统发育关系。一些物种在个体核基因树中不被支持为单系，这可能归因于古代杂交和/或不完整的谱系分类。尽管如此，分子物种界定分析支持了六个命名物种的有效性，但表明Chodsigoa lamula与Chodsigoa hypsibia是同种的。我们描述了一种新物种，Chodsigoa hoffmanni sp。 11月，并承认Chodsigoa Furva（以前被认为是Chodsigoa parca的一个亚种）为一个独特的物种。我们的分子分析还揭示了一种神秘物种，其在形态上与 C. hypsibia 没有区别。总之，我们识别出九种有效的 Chodsigoa 物种。
Shrews in the genus Chodsigoa are among the least known mammals in China. We sequenced one mitochondrial and two nuclear genes for 47 specimens. Using museum collections and sequences from GenBank, we integrated molecular and morphometric approaches to delimit species boundaries and estimate the phylogenetic relationships. Several species were not supported as monophyletic in individual nuclear gene trees, which may be attributed to ancient hybridization and/or incomplete lineage sorting. Nevertheless, molecular species delimitation analyses supported the validity of six named species but suggested that Chodsigoa lamula is conspecific with Chodsigoa hypsibia. We described one new species, Chodsigoa hoffmanni sp. nov., and recognized Chodsigoa furva, previously considered a subspecies of Chodsigoa parca, as a distinct species. Our molecular analyses also revealed a cryptic species that is morphologically indistinguishable from C. hypsibia. In summary, we recognize nine valid species of Chodsigoa.