Catalogue of alleles of gliadin-coding loci in durum wheat (Triticum durum Desf.)

► 700 durum wheat cultivars from 45 countries were studied for gliadin alleles polymorphism. ► The catalogue including 131 gliadin allelic variants was compiled for durum wheat. ► Block families were large for loci Gli-A2d, Gli-B2d as contrasted to Gli-A1d, Gli-B1d. ► Strict selection for quality and adaptability of durum wheat could reduce the diversity of Gli-A1d, Gli-B1d loci.