Manceau V, Després L, Bouvet J, Taberlet P
Laboratoire de Biologie des Populations d'Altitude, CNRS UMR 5553, Université Joseph Fourier, Grenoble Cedex 9, F-38041, France.
Mol Phylogenet Evol. 1999 Dec;13(3):504-10. doi: 10.1006/mpev.1999.0688.
Traditional classification in the genus Capra is based mainly on horn morphology. However, previous investigations based on allozyme data are not consistent with this classification. We thus reexamined the evolutionary history of the genus by analyzing mitochondrial DNA (mtDNA) sequence variation. We collected bone samples from museums or dead animals found in the field. Thirty-four individuals were successfully sequenced for a portion of the mtDNA cytochrome b gene and control region (500 bp in total). We obtained a star-like phylogeny supporting a rapid radiation of the genus. In accordance with traditional classification, mtDNA data support the presence of two clades in the Caucasus and the hypothesis of a domestication event in the Fertile Crescent. However, in conflict with morphology, we found that C. aegagrus and C. ibex are polyphyletic species, and we propose a new scenario for Capra immigration into Europe.
山羊属的传统分类主要基于角的形态。然而，先前基于等位酶数据的研究与这种分类并不一致。因此，我们通过分析线粒体DNA（mtDNA）序列变异重新审视了该属的进化历史。我们从博物馆或野外发现的死亡动物身上采集了骨骼样本。对34个个体的mtDNA细胞色素b基因和控制区的一部分（总共500 bp）成功进行了测序。我们得到了一个星状系统发育树，支持该属的快速辐射。与传统分类一致，mtDNA数据支持高加索地区存在两个进化枝以及新月沃地驯化事件的假说。然而，与形态学不同的是，我们发现东高加索羱羊和羱羊是多系物种，并且我们提出了山羊属迁入欧洲的新情况。
