trihybrid cross

trihybrid cross

the mating of two individuals, organisms, or strains that have different gene pairs that determine three specific traits or in which three particular characteristics or gene loci are being followed.
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Limes are apparent hybrids of citron and papedas (Scora 1975) or trihybrid cross of citron pummelo and Microcitrus (Barrett and Rhodes 1976).
Mendel actually did a trihybrid cross in which two of the three genes were on the same chromosome.
A dihybrid cross involves inheritance patterns for two traits considered simultaneously, a trihybrid cross involves three simultaneous traits, and so on.
Although I describe our specific class example in which we use this method with the F2 data from a dihybrid Drosophila cross, this method could easily be adjusted for analysis of a Drosophila trihybrid cross as well, mapping each pair of genes individually (Brooker, 2005).