Similarity of cultivars of wheat (Triticum durum) on the basis of composition of gliadin alleles

Abstract

Twenty one durum wheat cultivars originating from different world countries were investigated. Composition of gliadins was analyzed by acid polyacrylamide gel electrophoresis. Allele composition of gliadins was determined on the basis of identified gliadin blocks. Polymorphisms of Gliloci was established and 27 different gliadin alleles were identified, namely, 5 at Gli-A1, 4 at Gli-B1, 9 at Gli-A2 and 9 alleles at Gli-B2 locus. The catalogue of determined alleles was presented. Frequency of alleles ranged from 4.76% to 42.86%. Heterozygous Gli-loci were identified at two durum cultivars. Similarity among cultivars was studied on composition of Gli-alleles and presented by UPGMA dendogram. On the base of Gli- allele composition, similarity varied from 0% to 100%.