|Locations marked with broken lines (---) give only an indication of order; precise positions relative to other genes are not known. Superscript^A^ indicates that the gene mapped was transferred from an alien source, for which the map location is that of the wheat-alien chromosome break-point. Source references are indicated on the left hand side of each location. Established linkages for other markers of known chromosomal location are noted with references below each chromosomal map. References are cited by their number in the Catalogue of Gene Symbols for Wheat, 1993; they may be queried in GrainGenes with 'find reference gene_catalogue_number = <number>'.