linkage group


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linkage group

n.
A pair or set of genes on a chromosome that tend to be transmitted together.
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Noun1.linkage group - any pair of genes that tend to be transmitted together; "the genes of Drosophila fall into four linkage groups"
cistron, gene, factor - (genetics) a segment of DNA that is involved in producing a polypeptide chain; it can include regions preceding and following the coding DNA as well as introns between the exons; it is considered a unit of heredity; "genes were formerly called factors"
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References in periodicals archive ?
AFLP markers in a molecular linkage map of maize: codominant scoring and linkage group distribution.
An experiment-wise threshold value across all linkage groups also was obtained from the 50th (5%) highest LOD scores that were observed on any linkage group during each of 1000 iterations (Churchill & Doerge 1994).
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Average marker spacing per linkage group was calculated by dividing the total length of the linkage group by the number of intervals (Liu et al.
The first scenario assumed a single linkage group model (SLM) in which the organism's genome was comprised of a single chromosome of 1 M length.
By comparing the results, the scientists drew a genetic map that identifies key molecular markers along a region of the soybean genome known as Linkage Group I.
The mapping program places H20046154_2 on linkage group (LG) 28 and E20046154_2 on LG 24 (Fig.
Characterization of the Linkage Group I Seed Protein QTL in Soybean
Successive COMPARE, ORDER, and MAP commands were used to order the markers preliminarily in each linkage group with fewer than 9 markers.
Among model organisms, genetic mapping is most well established in the mouse, having begun in 1915 with the discovery of the first linkage group (16).
Sex-linked microsatellites were identified in linkage group 4 (LG4) of ShrimpMap, a linkage group that also includes 28 s rRNA, nonLTR retrotransposon reverse transcriptase and other markers with no homology to any sequence in the GenBank database.