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Emir. J. Food Agric. 2012; 24(4): 288-292

Relationship between storage protein banding pattern and growth type ofsome bread wheat varieties

Omid Sofalian*, Ali Asgari, Majid Shokrpour and Rasool Asghari Zakarya.


Seed storage proteins are one of the most important food resources that play important role on bread makingquality, in this respect distinguishing the genetic diversity was crucial in breeding aims. In order to studygenetic diversity in 20 wheat commercial varieties with different growth type, we analysed the banding patternsof gliadin proteins by SDS-PAGE technique. Our results showed 11 different bands that were polymorphic in20 studding varieties. Cluster analysis classified these genotypes into 3 groups. These differentiated groups haddifferent growth types; also cluster analysis based on Jaccard similarity coefficient showed that some lines hadhigher similarities than the others. Principle coordinate analysis showed that 80% of total variance wasdetermined by the first 3 components and cophenetic correlation coefficient equal to 0.75 was resulted and thisconfirmed the significant relation between gliadins and growth type. Existence of relation between growth typeand gliadin proteins could help breeders in variety discrimination and selection perspectives.

Key words: Bread Wheat, Gliadins, Growth type, SDS-PAGE

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