基础遗传学对于潜在压力出现了分歧。
The underlying genetics, and thus the underlying evolutionary pressures, thus appear to differ.
尽管姊妹系和姊妹种的遗传成分在组合表型总方差中所占比例较小，但其在穗部各性状之间仍存在较大分歧。
The genetic constitution of sister line and sister species made up the smaller proportion of the total crosses variance, but it had larger differences among the ear characters.
基于生物的遗传距离所建立的分子进化速率，可用于进一步推测不同生物类群在进化历史上的分歧时间。
Based on genetic distances, molecular evolution rates established by the hypothesis of molecular clock can be used to deduce the origin or divergence time of different organism taxa.
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