Effects of gluten strength of low Mr glutenin subunits coded by alleles at Glu-A3 and Glu-B3 loci in durum wheat
1996
Vazquez, J.F. | Ruiz, M. | Nieto-Taladriz, M.T. | Albuquerque, M.M.
The storage proteins of the F2 generation from three durum wheat crosses were analysed. Three new alleles were found at three different loci: Gli-B1 (coding for gliadins), and Glu-B3 and Glu-A3 (coding for low Mr glutenin subunits), respectively. The effects of the allelic variation at the Glu-B1, Gli-A1/Glu-A3 and Gli-B1/Glu-B3 loci on gluten strength, as measured by the SDS-sedimentation test, were determined using F3 seeds from the three crosses. None of the allelic differences at the Glu-B1 or Glu-A3 loci had a significant effect on gluten strength. Allelic variation at the Glu-B3 locus affected gluten quality significantly. A rank of the relative effect of the Glu-B3 alleles on quality is proposed.
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