显性方差(dominance variance):两个等位基因相互作用引起的方差。随世 代的增加,基因渐趋纯合,只有杂合时才有显性作用,所以,显性方差逐渐减小。
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条件遗传方差分析认为,早季谷粒充实的全过程,条件显性效应基因强烈表达,且发育全过程变化幅度较大;
Analysis on conditional genetic variance indicated conditional dominant-effect genes expressed strikingly with large variation range during the entire courses of grain filling in early season.
从条件方差分析的结果看,加性效应和显性效应在海岛棉的结铃过程中,在不同时期对铃数起着交替作用。
From the the result of variance analysis, in the course of the Island Cotton's boll, the adding effects and dominant effects play a replacing role in different stage.
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