隐性上位

结论：果蝇翅型基因互作类型为隐性上位，正反交F2比例不同。

Conclusion : The fin-type gene interaction of Drosophila melanogaster is recessive epistasis , and the proportion of F2 in reciprocal crosses is different .

对红卵基因（re）表现隐性上位作用。

ヽ ompared with the red egg gene , the mutant gene showed recessive epistasis .

结果表明隐性上位互作核不育纯合不育系9012A和双隐性核不育系5A的亲和力最强，隐性上位互作核不育全不育系12-148A次之，显性上位互作核不育系6A的亲和力最弱。

The results showed that the compatibility of recessive epistatic GMS line 9012A and duplicate recessive GMS line 5A was the highest , while that of recessive epistatic GMS all sterile line 12 ~ 148A was intermediate and that of dominant epistatic GMS line 6A was the lowest .

同时对隐性上位核不育的遗传行为方式进行了讨论。

The genetic behavior of recessive epistatic GMS is discussed .

在谷粒性状中，谷粒长和谷粒宽受两对主基因控制，主基因作用方式分别为隐性上位连锁和加性上位连锁作用。

The major genes were recessive-epistatic and complementary effect .

我国甘蓝型油菜隐性上位互作核不育三系的研究与利用

Research and Utilization of Three Lines with Nuclear Sterile Recessive Epistatic Interaction in Brassica napus in China

质量性状中存在6种可能的基因互作类型，即互补、重叠、累加、显性上位、隐性上位和抑制。

There are six possible types of gene interaction in qualitative traits , namely , complementary , duplicate , cumulative , dominant epistasis , recessive epistasis and inhibiting .

光周期敏感指数由2对隐性上位主基因及多基因控制，主基因和多基因遗传率分别为50%和37.5%。

The PSI was conditioned by 2 pairs of major genes with epistatic recessiveness effect and some polygenes . The heritability values of the major genes and polygenes were 50 % and 37.5 % , respectively .

谈赤蚁（Ch~D）对第二隐性赤蚁（ch-2）有隐性上位作用.SOD，CAT活力的显性方向和显性度因品种而异，推测是支配SOD，CAT活力基因间的上位作用所致。

The chp is recessive epistatic on ch-2 . The direction and degree of dominance of SOD and CAT activity differed with variety , which is speculated to be attributed to the epistatic action of the genes controlling the activity of the two enzymes .