Revealing the history of sheep domestication using retrovirus integrations.

Revealing the history of sheep domestication using retrovirus integrations.
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DOI:
10.1126/science.1170587
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发表时间:
2009-04-24
期刊:
Science (New York, N.Y.)
影响因子:
--
通讯作者:
Palmarini M
Palmarini M
中科院分区:
其他
文献类型:
--
作者:
Chessa B;Pereira F;Arnaud F;Amorim A;Goyache F;Mainland I;Kao RR;Pemberton JM;Beraldi D;Stear MJ;Alberti A;Pittau M;Iannuzzi L;Banabazi MH;Kazwala RR;Zhang YP;Arranz JJ;Ali BA;Wang Z;Uzun M;Dione MM;Olsaker I;Holm LE;Saarma U;Ahmad S;Marzanov N;Eythorsdottir E;Holland MJ;Ajmone-Marsan P;Bruford MW;Kantanen J;Spencer TE;Palmarini M

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家畜的驯化是人类历史上的关键一步。通过使用内源性逆转录病毒作为遗传标记,我们发现,绵羊分化的基础上,他们的“逆转录”和形态特征,分散在欧亚大陆和非洲通过单独的迁徙事件。第一次迁徙的遗迹包括Moulets,以及以前被认为是“原始”的基础上,他们的形态,如奥克尼,Soay和北欧短尾羊现在仅限于欧洲西北部的边缘品种。后来的迁徙事件,涉及羊与改善生产性状,塑造了绝大多数的今天的品种。区分遗传原始羊从更现代的品种的能力提供了宝贵的见解的历史羊驯化。
The domestication of livestock represented a crucial step in human history. By using endogenous retroviruses as genetic markers, we found that sheep differentiated on the basis of their “retrotype” and morphological traits, dispersed across Eurasia and Africa via separate migratory episodes. Relicts of the first migrations include the Mouflon, as well as breeds previously recognized as “primitive” on the basis of their morphology, such as the Orkney, Soay and the Nordic short-tailed sheep now confined to the periphery of NW Europe. A later migratory episode, involving sheep with improved production traits, shaped the vast majority of present-day breeds. The ability to differentiate genetically primitive sheep from more modern breeds provides valuable insights into the history of sheep domestication.
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