Molecular analysis of wild and domestic sheep questions current nomenclature and provides evidence for domestication from two different subspecies
Molecular analysis of wild and domestic sheep questions current nomenclature and provides evidence for domestication from two different subspecies
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DOI：
10.1098/rspb.2002.1975
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发表时间：
2002-05-07
影响因子：
4.7
通讯作者：
Janke, A
中科院分区：
文献类型：
--
作者：
Hiendleder, S;Kaupe, B;Janke, A
为了探讨野生绵羊的分类学和家养绵羊的起源，对中国部分野生绵羊的线粒体DNA控制区（CR）进行了序列测定和分析。用于系统发育分析的数据集包括63个来自蒙古野生绵羊的独特CR序列（O. musimon，O. orientalis）、urial（O. vignei）、盘羊（O.阿蒙）和大角羊（O. canadensis）群，以及来自亚洲、欧洲和新西兰的家养绵羊。家绵羊出现在两个明显分开的分支与mouthelae（O。musimon）混在一个家养羊群里。基于O. canadensis CR和mtDNA蛋白质编码序列的发现为两个鼠耳蝠亚种的驯化提供了强有力的证据。其他野生绵羊序列位于另外两个分离良好的分支中。Ovis阿蒙胶和O.阿蒙nigrimontana与一个来自transkaspian Ust-Urt高原的标本结合在一起，该标本目前被命名为O。维涅湖阿蒙阿蒙，O.阿蒙达尔文和O. vignei boconut ensis是一个独立的分支，是最早从mouches类群分化出来的。因此，O. musimon，O. vignei boguanensis和Ust-Urt羊不是“moufloniform”或O. orientalis种，但属于不同的分支。Ust-Urt羊可能是一个杂种群体，也可能是一个O.阿蒙亚种与O.阿蒙尼格里蒙塔纳。
Complete mitochondrial DNA (mtDNA) control regions (CR) were sequenced and analysed in order to investigate wild sheep taxonomy and the origin of domestic sheep (Ovis aries). The dataset for phylogenetic analyses includes 63 unique CR sequences from wild sheep of the mouflon (O. musimon, O. orientalis), urial (O. vignei), argali (O. ammon) and bighorn (O. canadensis) groups, and from domestic sheep of Asia, Europe and New Zealand. Domestic sheep occurred in two clearly separated branches with mouflon (O. musimon) mixed into one of the domestic sheep clusters. Genetic distances and molecular datings based on O. canadensis CR and mtDNA protein-coding sequences provide strong evidence for domestications from two mouflon subspecies. Other wild sheep sequences are in two additional well-separated branches. Ovis ammon collium and O. ammon nigrimontana are joined with a specimen from the transkaspian Ust-Urt plateau currently named O. vignei arkal. Ovis ammon ammon, O. ammon darwini and O. vignei bochariensis represent a separate clade and the earliest divergence from the mouflon group. Therefore, O. musimon, O. vignei bochariensis and Ust-Urt sheep are not members of a 'moufloniform' or O. orientalis species, but belong to different clades. Furthermore, Ust-Urt sheep could be a hybrid population or an O. ammon subspecies closely related to O. ammon nigrimontana.