Any non-additive interaction between two or more mutations at different loci, such that their combined effect on a phenotype deviates from the sum of their individual effects.
a type of gene interaction in which the inheritance of one gene affects the phenotypic expression of another gene. This occurs because more than one gene product may be necessary for the development of some characteristics.
The blocking of the effects of one gene by the expression of another, non-allelic gene.
When the phenotype caused by a mutation in one gene is masked or enhanced by a mutation in another gene.
The effect of one variable on another, an interdependence between components rather than an independence.
A term from biology used to denote that the fitness of an individual depends upon the interaction of a number of their genes. In genetic algorithms this would be indicated by the fitness containing a non-linear combination of components of the string.
eh-pis-tah-sis A gene masking another gene's expression. 274
used to describe the situation where one gene's expression prevents the expression of another (e.g. you cannot determine whether an albino would have had black or brown hair, though these two traits are controlled by separate genes.)
One gene interfers with or prevents the expression of another gene located at a different locus.
An interaction among genes at different loci such that the expression of genes at one locus depends on the alleles present at one or more other loci.
the nonreciprocal interaction of nonallelic genes; the situation in which one gene masks the expression of another
Interaction between genes.
two or more genes interacting with one another in a multiplicative fashion. [Source: NHBLI/NCBI Glossary
The suppression of a gene by the effect of an unrelated (epistatic) gene.
The masking of the phenotypic effect of alleles at one gene by alleles of another gene. A situation in which the phenotypic expression of a genotype at one locus depends upon the genotype at another locus.
The masking of the effects of one gene by the action of another.
One gene supresses the expression of another
when one gene masks or otherwise modifies the expression of another gene
Epistasis takes place when the action of one gene is modified by one or more others that assort independently. (The two genes may be quite tightly linked, but their effects must reside at different loci in the genome). The gene whose phenotype is expressed is said to be epistatic, while the phenotype altered or suppressed is said to be hypostatic.
