上位效应(Epistatic effect)是非等位基因间的交互作用而产生的基因效应，即不同位点上的基因交互作用，其效应值偏离单位点上基因的累加效应值，这部分偏离的...
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【正文快照】： 上位性效应(epistatic effect)是非等位基因间的相互作用而产生的基因效应,即不同位点上的基因相互作用,其效应值偏离单位点上基因的累加效应值,这部分偏离的效应...
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Path analysis showed that the interacted among the drought tolerance related traits by both direct effects and indirect effects .3. A total of 112 additive effect QTLs and 169 pairs of epistatic effect QTLs were detected under different water regimes.
3.对幼苗抗旱相关性状和平均隶属函数值进行QTL定位分析,共检测到112个具有显著加性效应的QTL和169对具有上位性效应的QTL。
参考来源 - 小麦幼苗抗旱相关性状的QTL定位分析·2,447,543篇论文数据，部分数据来源于NoteExpress
The result showed that the epistatic effect in all of those traits were not significant.
结果表明，这些指标的上位效应均不显著，均符合加性—显性遗传模型。
GF vs WF had difference in three genes, and the G gene had epistatic effect, one W was enough to restrain the express of YF and WF.
绿色对白色有三对基因差异，其中绿色基因有显性上位作用，只需一个绿色基因G存在，即可抑制淡黄色与白色性状的表达。
Epistatic component accounted for 6 3% for the total number born, and 6 5% for the number born alive, which showed that epistatic effect was not important in the genetic variation between populations.
上位效应平方和占总产仔数和活产仔数总遗传变异平方和的比例分别为6 3%和6 5 % ，可见上位效应对窝产仔数群体间遗传差异作用不大。
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