Localization of genes, determining quantitative traits in wheat: amendment to the "catalog of chromosomal mapping of genes in domestic cultivars of wheat"

An amendment to the catalog of chromosome location of genes in Russian wheat cultivars was constructed with the published data of the recent decade. The results of chromosomal localization were summarized and analyzed by methods of multivariate statistics. Chromosomes critical for 40 quantitative traits under study proved to cluster according to their homeology, i.e., by homeological groups. The hypotheses providing an explanation for this finding are considered. It is suggested that quantitative traits are similarly controlled by genes located on homeological chromosomes in common wheat, making it possible to isolate a limited number of major genes for each particular quantitative trait.