introgression

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Related to Introgression line: 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.
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References in periodicals archive ?
Grain Shape Performance of Parents and Two Introgression Line Populations
Background= Reciprocal Introgression Line Populations in MH63 indica background.
We utilize introgression lines to assess the contributions of individual genomic regions to the divergent genital lobe size and shape between D.
Development of candidate introgression lines using an exotic barley accession (Hordeum vulgare ssp.
Introgression Lines. - Negative interactions between genetic factors (nuclear or cytoplasmic) of two species that are combined in hybrid individuals lead to hybrid inferiority.
In an effort to map these CAPS and SCAR markers on the tomato molecular linkage map, SCAR18f/r, SCBC792f/r, and SCBC792f1/r primer pairs were used to amplify the DNA samples from a set of 50 introgression lines (ILs) (Eshed and Zamir, 1994; Zhang and Stommel, 2000).
In case of exotic genetic libraries, epistatic interactions among various QTLs could be estimated by combinations of these introgression lines with different QTLs and different genetic backgrounds [94].
Pinson has also teamed up with a scientist in the Philippines to develop a second gene-mapping population known as the "TeQing-into-Lemont introgression lines" (TILs), which consist of 123 genetic lines that each contain just 1 to 5 small pieces of TeQing DNA placed within a predominantly Lemont genetic background.
barbadense introgression lines. It is not clear whether these loci or chromosomal fragments are selectively favored in the recurrent parent or whether they represent examples of "selfish genes"; i.e., genes that enhance the success of gametes they inhabit, even if they pose a significant fitness cost during the diploid phase of the life cycle (Haldane 1932).
Linking root traits and grain yield for rainfed rice in sub- Saharan Africa: Response of Oryza sativa x Oryza glaberrima introgression lines under drought.
Four QTLs (SZtgb, STG1, Stg3 and Stg4) were introduced successfully, by marker-assisted backcrossing, responsible for the governance of type A stay-green character from B35 sorghum line to R16 synchronized line, raising capacity of drought stress tolerance, which resulted from the introgression lines (KASSAHUN et al., 2010).
dent, and 43 introgression lines. These lines originated from the maize breeding programs at the University of Hohenheim (Stuttgart, Germany), Iowa State University (Ames, IA, USA), and three commercial breeding companies in Germany.