The phylogenetic relationship between different duck breeds was in accordance with their breeding history, differentiation and localities.
各鸭品种的分子系统发生关系与其育成史、分化及地理分布基本一致。
It is concluded that genetic differentiation of sheep breeds of Mongolian Group in China is mainly the result of natural selection (different living conditions).
初步推断我国蒙系绵羊品种间的遗传分化主要是自然选择(生境异质性)作用的结果。
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