linkage group


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link·age group

a set of two or more loci that have been shown by linkage analysis to be physically close in the genome but that have not yet been assigned to specific chromosomes. It is rapidly becoming an outmoded term.

linkage group

n.
A pair or set of genes on a chromosome that tend to be transmitted together.

linkage group

a group of genes that tend to be inherited as a unit because they are located on the same chromosome. Without crossing over, all of the genes on a given chromosome constitute a linkage group, and the number of linkage groups in an organism is equal to the number of autosomes in a haploid cell.
References in periodicals archive ?
Second, the AFLP marker distribution was also analyzed by calculating the Pearson correlation coefficient between the number of AFLP markers in the linkage groups and the size of the linkage groups (Yu & Guo 2003).
and largest intervals of linkage groups in the male of C.
The male map consisted of 94 markers in 19 linkage groups that covered 1511.
In the families screened with microsatellites only, only 2 markers mapped repeatedly to INT_LG_16 (HmNS21 and HmRS80); however, with the inclusion of SNPs, this linkage group consists of 10 markers.
One SNP marker (HmSNP1834_464) was, however, distorted in all the families for which it was informative (DS1, DS5, and DS6), but could not be assigned to any linkage group in these families.
Such results are expected to be similar to those obtained for the single linkage group model.
For single linkage group models, the accuracy of genetic prediction was mainly influenced by heritability of the trait.
Only one linkage group was matched between male and female maps.
First, the average spacing s between markers, which is calculated by dividing the total observed map length by the number of marker intervals, was estimated, followed by adding twice the s value to the observed map length of each linkage group (Gel, Fishman et al.
It is unclear why the majority of markers developed so far located on to LG4, a linkage group associated with sex locus (see later) and also includes 28s rRNA, nonLTR retrotransposon reverse transcriptase and other markers with no homology to any sequence in the GenBank database.
220, homologs of 28s rRNA gene, located on to the same linkage group where Sex locus was located on