introgression

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Related to Genetic introgression: introgressive hybridization

introgression

(ĭn′trə-grĕsh′ən)
n.
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.

in′tro·gres′sive (-grĕs′ĭv) adj.
References in periodicals archive ?
What do these genetic introgression estimates say about the current situation with mussels in the NWSJ?
The second conclusion is that genetic introgression is still present between the two taxa of Mytilus ex.
Each individual specimen must be sequenced for this region and potential problems arise when examining specimens of hybrid origin or taxa with extensive historical genetic introgression. Noel et al.
Moreover, fishes present problems with contemporary hybridization and historical genetic introgression common in many groups (Hopkins and Eisenhour, 2008).
A number of ecological and genetic factors will determine how easily seeds or pollen can migrate from one population to another, and whether hybridization and genetic introgression between the populations may occur.
A comparison of genetic diversity between cultured and wild populations, and a test for genetic introgression in the New Zealand greenshell mussel Perna canaliculus (Gmelin 1791).
Ecological competition has been hypothesized to be the primary cause of species displacement and genetic introgression to be a secondary cause (Gill 1980, Confer 1992).
Rapid, geographically extensive genetic introgression after secondary contact between two pupfish species (Cyprinodon, Cyprinodontidae).
Whereas genetic introgression of domesticated stocks with wild stocks cannot be completely eliminated, some control can be gained by limiting the collection and culture of domesticated stocks to geographic units defined by the genetic structure of wild stocks.
Frequency comparisons of species-specific cytoplasmic (mtDNA) and nuclear (allozymes) markers can give considerable insight into the dynamics of genetic introgression (Lansman et al.
A population from adjacent Green Lake County yielded a dark female #1303 (Table 3C) that produced yellow and intermediate female offspring [ILLUSTRATION FOR FIGURE 5 OMITTED], which strengthens the suggestion that these represent hybrid populations with genetic introgression. Although we did not analyze allozyme frequencies, which could be diagnostic for these suspected hybrid Green Lake County and Marquette County populations (Hagen et al.