Abstract
Recombination within the closely linked genes encoding for omega and gamma gliadins at the complex Gli-B1 locus present on the short arm of chromosome 1B was detected in a durum-wheat line (Triticum durum) from Iran. This recombinant differs from a previous one the authors detected in the durum-wheat cultivar ‘Berillo’ since it shows the gamma gliadin component 45 associated with a triplet of omega components usually found linked with the allelic gamma gliadin 42. Analysis of low-molecular-weight glutenin subunits, encoded by genes at the complex Glu-B3 locus associated with the Gli-B1 locus, showed the presence of the protein type designated LMW-1 which is peculiar to durum-wheat cultivars possessing the gamma gliadin 42.
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