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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
References in periodicals archive ?
The efficiency of genetic introgression in Pakistani sugarcane cultivars has been low, due to the sporadic flowering behaviour, barriers in natural hybridization, self-incompatibility, technical difficulties in artificial crossing, prolonged selection and evaluation processes.
Assessment of cattle genetic introgression into domestic yak populations using mitochondrial and microsatellite DNA markers.
Zebu-taurine variation in Y chromosomal DNA: a sensitive assay for genetic introgression in West African trypanotolerant cattle populations.
2009), genetic introgression from cultured to wild conspecifics may reduce the genetic diversity of wild populations (Allendorf & Ryntan 1987, Hedgecock & Coykendall 2007, Camara & Vadopalas 2009).
Hybridisation, with and without genetic introgression has been frequently reported in Canidae (Lehman et al.
It is unclear why hypotheses of Lepomis relationships show such inconsistencies but possible reasons include rapid historical diversification, inadequate analyses of phylogenetic data, inadequate markers or taxon sampling, genetic introgression via historical and recent hybridization, or cryptic diversity (Near et al.
Differences in extent of genetic introgression between sympatric Culex pipiens and Culex quinquefasciatus (Diptera: Culicidae) in California and South Africa).
The spread of the Leu-Phe kdr mutation through Anopheles gambiae complex in Burkina Faso: genetic introgression and de novo phenomena.
Attempts to break the sexual barrier for genetic introgression by technologies as somatic hybridization (Saha et al.