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GrainGenes Reference Report: CCM-78-69

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Reference	CCM-78-69
Title	Effect of multiple substitution of glutenin and gliadin proteins on flour quality of Canada Prairie Spring wheat
Journal	Cereal Chemistry
Year	2001
Volume	78
Pages	69-73
Author	Wesley AS Lukow OM McKenzie RIH Ames N Brown D
Abstract	Summary: The effect of genetic substitution of two to four glutenin and gliadin subunits from a Canada Prairie Spring (CPS) cv. Biggar BSR into Alpha 16, another CPS wheat line, was studied for rheological and baking quality. Results from double substitution showed that the presence of a gliadin component from Biggar BSR (BGGL) and low molecular weight glutenin subunit 45 (LMW 45) contributed to improved dough strength characteristics. Presence of BGGL in combination with high molecular weight glutenin subunit 1 (HMW 1) or 17+18 (HMW 17+18) also showed improved dough strength over control Alpha lines. When three or four protein subunits were substituted, even though improved quality performance was observed, it was associated with the negative effect of lowered flour water absorptions in spite of similar protein contents. The study confirms that LMW glutenins, as well as gliadins, play an important role along with HMW glutenins in wheat flour quality. CPS wheat lines with improved dough strength properties can be selected from the double substitution lines with the combination of BGGL/LMW 45 and BGGL/HMW 1
Keyword	[ Hide all but 1 of 35 ] a-gliadin alpha baking baking quality canada cereal dough durum wheat flour flour quality functional properties genotype gliadin gliadin proteins glutenin glutenin subunit high molecular weight hmw hmw glutenin lmw molecular weight multiple performance properties protein content protein subunits quality spring spring wheat substitution substitution lines subunit water weight wheat flour

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