不同品种的叶龄指数所对应的雄、雌穗分化各时期是基本一致的。
Leaf number index right should the spike differentiation all stages within different variety were very similar.
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。
The phylogenetic relationship between different duck breeds was in accordance with their breeding history, differentiation and localities.
鸡种间存在较大的遗传分化，16.7%的遗传变异源于品种间的差异。
Considerable breed differentiation was observed and 16.7% of the total genetic variation came from breed differences.
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