Kazanskaia E Iu, Kuznetsova M V, Danilkin A A
Genetika. 2007 Feb;43(2):245-53.
Mitochondrial genome fragments were examined in all species of the genus Capra (Bovidae, Artiodactyla). Phylogenetic analysis was carried out using 59 cytochrome b gene sequences (392 bp), and 22 sequences of the mtDNA variable fragment (402 bp). In the control region, two unique deletions were revealed. One of the deletions was found only in Capra cilindricornis (17 bp), while another one grouped C. caucasica with C. aegagrus (1 bp). The group of Caucasian wild goats splits into two clades, and furthermore, the sequences of C. caucasica demonstrate remarkable similarity to the sequences of C. aegagrus, while C. cylindricus seems to have evolved independently for a long period of time. It was demonstrated that C. pyrenaica and C. ibex were extremely close to one another. Capra sibirica formed an outer group relative to the other species, and according to our data, was the most ancient species of the genus. On the contrary, genetic distance separating C. falconeri (the most independent species of the genus related to its morphology) from the other species is small.
对山羊属(牛科,偶蹄目)的所有物种的线粒体基因组片段进行了检测。利用59条细胞色素b基因序列(392bp)和22条线粒体DNA可变片段序列(402bp)进行了系统发育分析。在控制区,发现了两个独特的缺失。其中一个缺失仅在柱角山羊(17bp)中发现,而另一个缺失将高加索山羊与野山羊归为一组(1bp)。高加索野山羊群体分为两个进化枝,此外,高加索山羊的序列与野山羊的序列表现出显著的相似性,而柱角山羊似乎在很长一段时间内独立进化。结果表明,西班牙山羊和北山羊彼此极为接近。西伯利亚山羊相对于其他物种形成了一个外类群,根据我们的数据,它是该属最古老的物种。相反,将捻角山羊(该属与其形态相关的最独立物种)与其他物种分开的遗传距离很小。