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GENETIC DIVERSITY OF HIGH MOLECULAR WEIGHT GLUTENIN SUBUNITS IN BREAD WHEAT (TRITICUM AESTIVUM L.) CULTIVATE IN ALGERIA
Abstract
The molecular characterization of Genetic diversity of ten bread wheat (Triticum aestivum L.) varieties was evaluated by studying high molecular weight (HMW) glutenin subunits. Polymorphism of HMW-SG war carried on by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE). Among genotypes analyzed, twelve polymorphic bands were identified at the three loci Glu-A1, Glu-B1 and Glu-D1. The analysis of HMW-GS reveals a great diversity at the level of the three loci and more particularly on the locus (Glu-B1). The results show the superiority of the alleles 22, (6+8), (7+9), (2+12), (10+5) and (7+8), compared to other alleles. It was evident that the combinations of HMW-GS for good quality encoded at different loci usually offer better dough elasticity and bread-making quality.
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