他们把从来自世界各地的12只狼和属于14个种类的60只狗身上采集到的DNA按顺序排列.在确定四百万个所谓的单核苷酸多形性(SNPs) 的同时,他们首先寻找DNA中不同的基因信息编码,称作基本要素；这种编码从一个基因组到另一个基因组之间变动.他们对多数SNPs不过多考虑大区域,而是集中在存在极少或干脆没有SNPs的特定地方.这种类型缺乏变异信号的DNA,这种DNA在人工驯化期间对生存是十分重要的,也就是说一种在那里的任何变异都已经不存在的人工驯化,因此多数狗具有相同的SNPs.那些大区域曾经是研究人员对不断随访最感兴趣的地方.
英语翻译They sequenced DNA from 12 wolves from around the world
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