利用系统发育学解决分布广泛且高度多态的非洲巨型麝鼩（麝鼩属橄榄色麝鼩种群，麝鼩亚科，哺乳纲）的分类问题。

Use of phylogeny to resolve the taxonomy of the widespread and highly polymorphic African giant shrews (Crocidura olivieri group, Crocidurinae, Mammalia).

作者信息

Dubey Sylvain, Antonin Maxence, Denys Christiane, Vogel Peter

机构信息

Department of Ecology and Evolution, University of Lausanne, CH-1015 Lausanne, Switzerland.

出版信息

Zoology (Jena). 2007;110(1):48-57. doi: 10.1016/j.zool.2006.05.003. Epub 2006 Dec 13.

DOI:10.1016/j.zool.2006.05.003

PMID:17169541

Abstract

The aim of this study is to provide a better understanding of the genetic relationships within the widespread and highly polymorphic group of African giant shrews (Crocidura olivieri group). We sequenced 769 base pairs (bp) of the mitochondrial cytochrome b gene and 472 bp of the mitochondrial control region over the entire geographic range from South Africa to Morocco. The analyses reveal four main clades associated with different biomes. The largest clade occurs over a range covering Northwest and Central Africa and includes samples of C. fulvastra, C. olivieri, and C. viaria. The second clade is composed of C. goliath from Gabon, while South African C. flavescens, and C. hirta form two additional clades. On the basis of these results, the validity of some taxa in the C. olivieri group should be re-evaluated.

摘要

本研究的目的是更深入地了解分布广泛且高度多态的非洲巨鼩（奥利弗氏麝鼩组）群体内的遗传关系。我们对从南非到摩洛哥的整个地理范围内的线粒体细胞色素b基因的769个碱基对（bp）和线粒体控制区的472个碱基对进行了测序。分析揭示了与不同生物群落相关的四个主要分支。最大的分支分布在西北非和中非地区，包括黄褐麝鼩、奥利弗氏麝鼩和韦氏麝鼩的样本。第二个分支由来自加蓬的歌利亚麝鼩组成，而南非的淡黄麝鼩和毛麝鼩则形成另外两个分支。基于这些结果，应重新评估奥利弗氏麝鼩组中一些分类单元的有效性。