Proposal for combining the classification systems of alleles of Gli-1 and Glu-3 loci in bread wheat (Triticum aestivum L.)

A new system of nomenclature for the alleles of the genes encoding some gliadin and low molecular weight glutenin (LMW-GS) in bread wheat (Triticum aestivum L.) is suggested. Gliadins encoded by Gli-A1, Gli-B1 and Gli-D1 and LMW-GS encoded by Glu-A3, Glu-B3 and Glu-D3 are described using the following format; Gli-A1 x, Glu-A3 y, were x is the Gli-1 allele designated by Metakovsky (1991) and y is the Glu-3 allele designated by Gupta and Shepherd (1990). The short hand version of the nomenclature is to use only the gliadin allele, e.g. Gli-B1b. However, if there can be more than one Glu-3 allele associated with a particular Gli-1 allele, or vice versa, both alleles should be written, e.g. Gli-A1f, Glu-A3a, Gli-B1m, Glu-B3i or Gli-D1b, Glu-D3c. In this pubblication we have also used the format Gli-A1, Glu-A3 x; y. A list of 18 cultivars is given to cover variation found in the set of 49 cultivars studied. The seed of this definite set is available on request