家养动物驯化起源的研究方法与进展

蔡新宇, 毛晓伟, 赵毅强

Methods and research progress on the origin of animal domestication

Xinyu Cai, Xiaowei Mao, Yiqiang Zhao

图1 基于分子手段判断驯化起源的策略示意图。不同颜色的圆圈代表不同的基因型。纵向为基因座, 指示位点多态性; 横向将基因座连成序列, 指示序列相似性。伴随驯化的过程, 动物从驯化初始地迁移到各地, 同源序列的相似性降低, 迁移样本在同源位点上的多态性降低。

Fig. 1 Strategies for inferring the origin of domestication based on molecular evidences. Circles with different colors represent different genotypes. The vertical direction represents allelic polymorphism of each genetic locus; the horizontal sequence represents the nucleotide sequence. During the process of domestication, animals migrate from domestication site to other places, with decreased similarity in nucleotide sequences and decreased polymorphism of genetic loci.