codominance


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Related to codominance: Multiple alleles, incomplete dominance

codominance

/co·dom·i·nance/ (ko-dom´ĭ-nins) the full expression in a heterozygote of both alleles of a pair with neither influenced by the other, as in a person with blood group AB.codom´inant

codominance

(kō-dŏm′ə-nəns)
n.
A heterozygous condition in which both alleles at a gene locus are fully expressed in the phenotype.

codominance

[kōdom′ənənts]
Etymology: L, cum, together with, dominare, to rule
the equal degree of dominance of two alleles or traits fully expressed in a phenotype, as when a person inherits both the IA and IB genes of the ABO blood group and has type AB blood. codominant, adj.

codominance

the relationship between two different ALLELES of a gene in the HETEROZYGOTE, producing a PHENOTYPE containing both parental forms of the character. For example, allele A of the ABO blood group is codominant to allele B, so that an individual with both alleles (A/B) produces both A and B antigens. Compare INCOMPLETE DOMINANCE. See DOMINANCE (1).
References in periodicals archive ?
These models were chosen to represent the variation found in SSI systems: codominance in both pollen and style is reported in Caryophyllaceae (Lundquist 1994), codominance in the style and dominance hierarchy in the pollen is described in Brassicaceae (Ockendon 1974; Stevens and Kay 1989), and dominance hierarchy in pollen and style is found in Asteraceae (Samaha and Boyle 1989) and Convolvulaceae (Kowyama et al.
The local codominance of such a guild of legumes on this edaphically extreme site suggests that there is a selective advantage in the trees being ectomycorrhizal as opposed to being arbuscular (or non-) mycorrhizal.
This pattern of codominance may reflect different advantages of each species under different environmental conditions.
The availability and abundance of SSR markers throughout the cotton genome, their polymorphic nature, codominance, and polymerase chain reaction (PCR)-based assay make SSRs useful in detecting genetic diversity (Reddy et al.
Because the initial experiment was designed for the analysis of a fertilizer treatment response, trees were selected for codominance in the canopy and understory trees were avoided.
The mean basal areas for each species from the baseline runs [ILLUSTRATION FOR FIGURE 7A OMITTED] show a familiar successional pattern, with shade intolerant species initially dominant, but declining after reaching peak abundances between years 100 (WA) and 400 (YB), and subsequent late successional codominance by Be and Hm.
For example, Themeda triandra, a highly palatable East African savanna grass, suffers [approximately equal to]80% mortality from ungulate grazers when not associated with other, less palatable grass species; however, as codominance with unpalatable species increases, mortality of Themeda rapidly decreases (McNaughton, 1978).
1996), which benefit from their high polymorphism, heterozygosity, codominance, and wide transportability across different mapping populations.
The genotype assignment test makes full use of the data, including codominance of SSR markers.
Codominance is possible, as the average fixation time with codominance is on the order of 135 [+ or -] 50 generations.
Canonical discriminant analysis of southwestern riparian community types indicated a trend toward Salix dominance on low-elevation sites, and codominance of this species with Populus at middle elevations (Szaro 1989).