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 ?
In addition, the Pearson's correlation coefficient between the length of linkage groups and the number of markers per linkage group were r = 0.
Such results are expected to be similar to those obtained for the single linkage group model.
Two linkage groups have been identified involving seven allozyme markers (Foltz, 1986).
1995b) indicates that seven linkage groups appear to be collinear between the two species, although this does not rule out the possibility of small undetected rearrangements.
For example, from the four QTLs identified for the across-environment difference of height, three QTLs on linkage groups A, B, and R specifically responded to the environmental alteration from Boardman to Clatskanie or Clatskanie to Boardman, although the other QTL on linkage group M was also involved in trait variation within environments (Table 1).
The number of loci per linkage group ranged from 3-20, with an average of 9 loci per linkage group.
2001 CIM Note: Values with # are linkage group was not used for meta-analysis because it is significantly different for marker order or map distance from the soybean composite linkage map or it has extreme [R.
This comparison defined 181 conserved linkage groups, approximately 90% of the mouse genome.
Within this group, each diagnostic allozyme is expected to mark the taxonomic origin of a linkage group.