introgression(redirected from Genetic introgression)
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Related to Genetic introgression: introgressive hybridization
The movement or spread of alleles of one species into the gene pool of another through repeated backcrossing of interspecific hybrids with members of one of the parental species.
[From Latin intrōgressus, past participle of intrōgredī, to step in : intrō-, intro- + gradī, to step; see ghredh- in Indo-European roots.]
in′tro·gres′sive (-grĕs′ĭv) adj.
(Genetics) the introduction of genes from the gene pool of one species into that of another during hybridization