Dhaka 16th Nov. ‘13. In an article titled, “Efficient Isolation of ion
beam-induced mutants for homologous loci in common wheat and comparison of the contributions of Glu–1 loci to gluten functionality,” published in the November issue of Theoretical and Applied
Genetics,” Yushuang Yang and 11 of his associates affiliated with The State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing, demonstrated that common bread wheat (= Triticum aestivum) gluten mutants lacking Glu–A1, Glu–B1 or Glu–D1 loci induced by ion beam can be isolated and studied efficiently. These three loci encode high molecular weight glutenin subunits (HMW-GSs) and affect gluten functionality and end-use quality of common wheat. All the three mutant lines showed decreased accumulation of low mol. wt. glutenin subunits (LMW-GSs) and increased amounts of gliadins. Their study also revealed the
genetic effects of Glu-1 on gluten functionality can be ranked as
Glu–D1 > Glu–B1 > Glu–A1. Their study also suggests that Glu–1
loci contribute to gluten functionality both directly and indirectly.