semidominant


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semidominant

adjective Referring to the phenotypic effect of a particular allele on another allele with respect to a given trait. Allele A is said to be semidominant with respect to allele a if the A/A homozygote has a mutant phenotype and the A/a heterozygote has a less severe phenotype, while the a/a homozygote is wild-type.
References in periodicals archive ?
1989) combined two semidominant imidazolinone resistance genes from two canola lines, representing two unlinked genes, to produce an [F.
Until recently, seven major oat dwarfing mutants had been described officially and classified in Arena species (Marshall and Shaner, 1992); however, only two of them, the dominant Dw6 and the semidominant Dw7, are readily available, and only Dw6 is being used currently for cultivar development (Marshall et al.
Dominant or semidominant dwarfing mutations have been identified at the Rht-B1 and Rht-D1 loci of wheat and the d8 locus of maize.
The semidominant nature of the Dw7 mutation would be in line with overexpression of a phytochrome gene.
The semidominant GA-sensitive dwarfing gene Rht8 has been identified in many central European wheats and mapped to the short arm of 2DS (Korzun et al.
Monogenic semidominant sulfonylurea resistance in a line of white chicory.