• 中文核心期刊要目总览
  • 中国科技核心期刊
  • 中国科学引文数据库(CSCD)
  • 中国科技论文与引文数据库(CSTPCD)
  • 中国学术期刊文摘数据库(CSAD)
  • 中国学术期刊(网络版)(CNKI)
  • 中文科技期刊数据库
  • 万方数据知识服务平台
  • 中国超星期刊域出版平台
  • 国家科技学术期刊开放平台
  • 荷兰文摘与引文数据库(SCOPUS)
  • 日本科学技术振兴机构数据库(JST)
何锴, 陈欣, 陈鹏, 何水旺, 程峰, 蒋学龙, Kevin L. Campbell. 2018: 中国哺乳动物鼩鼱科一新属:豹鼩属. 动物学研究, 39(5): 321-334. DOI: 10.24272/j.issn.2095-8137.2018.058
引用本文: 何锴, 陈欣, 陈鹏, 何水旺, 程峰, 蒋学龙, Kevin L. Campbell. 2018: 中国哺乳动物鼩鼱科一新属:豹鼩属. 动物学研究, 39(5): 321-334. DOI: 10.24272/j.issn.2095-8137.2018.058
Kai He, Xing Chen, Peng Chen, Shui-Wang He, Feng Cheng, Xue-Long Jiang, Kevin Campbell. 2018: A new genus of Asiatic short-tailed shrew (Soricidae, Eulipotyphla) based on molecular and morphological comparisons. Zoological Research, 39(5): 321-334. DOI: 10.24272/j.issn.2095-8137.2018.058
Citation: Kai He, Xing Chen, Peng Chen, Shui-Wang He, Feng Cheng, Xue-Long Jiang, Kevin Campbell. 2018: A new genus of Asiatic short-tailed shrew (Soricidae, Eulipotyphla) based on molecular and morphological comparisons. Zoological Research, 39(5): 321-334. DOI: 10.24272/j.issn.2095-8137.2018.058

中国哺乳动物鼩鼱科一新属:豹鼩属

A new genus of Asiatic short-tailed shrew (Soricidae, Eulipotyphla) based on molecular and morphological comparisons

  • 摘要: 基于遗传单系与鉴别特征的系统发生种的划分及其对哺乳动物分类学的意义 鼩鼱科亚洲短尾鼩族(Blarinellini) 是一个曾经十分繁盛的类群,包括九个化石属和一个现生属,它们的足迹曾经遍布欧亚和美洲大陆。唯一的现生属黑齿鼩鼱属(Blarinella)主要分布于中国西南山地和邻近地区。尽管黑齿鼩鼱属的分类系统几经变动,但仅涉及到种和亚种的划分,而模式产地位于甘肃南部临潭地区的淡灰黑齿鼩鼱(B. griselda) 也长期被认为是中国西南的广布种。本研究测定了亚洲短尾鼩和美洲短尾鼩物种的线粒体全基因组及核基因序列,证实淡灰黑齿鼩鼱包含两个差异极大的进化支系,其中一支与黑齿鼩鼱属的物种进化关系很近,且与黑齿鼩鼱属模式物种川鼩 (B. quadraticauda) 构成姐妹群关系,而仅分布于模式产地附近(甘肃南部和陕西南部)的另一支系早在18百万年之前的中新世中期已经分化。尽管通过形态测量学无法将该支系与黑齿鼩鼱属区分开,但二者在牙齿构造、特别是上前臼齿(P4)等形状上有明显的差异,且不同于分布于中国的化石属。我们基于上述证据将淡灰黑齿鼩鼱命名为新属,即豹鼩属(Pantherina)。该新属某些牙齿特征与化石类群更为接近,暗示它是亚洲短尾鼩族较黑齿鼩鼱属更加原始的类群,豹鼩的属的发现也将为亚洲短尾鼩族的兴衰提供新的线索。

     

    Abstract: Blarinellini is a tribe of soricine shrews comprised of nine fossil genera and one extant genus. Blarinelline shrews were once widely distributed throughout Eurasia and North America, though only members of the Asiatic short-tailed shrew genus Blarinella currently persist (mostly in southwestern China and adjacent areas). Only three forms of Blarinella have been recognized as either species or subspecies. However, recent molecular studies indicated a strikingly deep divergence within the genus, implying the existence of a distinct genus-level lineage. We sequenced the complete mitochondrial genomes and one nuclear gene of three Asiatic short-tailed and two North American shrews and analyzed them morphometrically and morphologically. Our molecular analyses revealed that specimens ascribed to B. griselda formed two deeply diverged lineages, one a close relative to B. quadraticauda, whereas the other — comprised of topotype specimens from southern Gansu — diverged from other Blarinella in the middle Miocene (ca. 18.2 million years ago (Ma), 95% confidence interval=13.4–23.6 Ma). Although the skulls were similarly shaped in both lineages, we observed several diagnostic characteristics, including the shape of the upper P4. In consideration of the molecular and morphological evidence, we recognize B. griselda as the sole species of a new genus, namely, Pantherina gen. nov. Interestingly, some characteristics of Pantherina griselda are more similar to fossil genera, suggesting it represents an evolutionarily more primitive form than Blarinella. Recognition of this new genus sheds light on the systematics and evolutionary history of the tribe Blarinellini throughout Eurasia and North America.

     

/

返回文章
返回