Journal
JOURNAL OF CEREAL SCIENCE
Volume 48, Issue 3, Pages 598-603Publisher
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jcs.2007.12.006
Keywords
Wheat; Gluten; Prolamins; Rheology of dough; Quality tests; 1BL.1RS translocation; Glu-D3; Bread-making quality
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Funding
- State Secretariat for Education and Research (SER), Berne, Switzerland
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To investigate the impact of 1BL1RS translocation on protein content, starch quality, dough rheology, RMT volumes and other quality traits, a doubled haploid population was created and sown in a two-year field experiment. Translocated genotypes accumulated more proteins in the endosperm than non-translocated genotypes. Decrease in the gelatinization of starch was associated with the 1BL.1RS translocation. As for theological parameters, adapted to bread types not requiring high mixing energy, the 1BL.1RS translocation significantly reduced the elasticity, tenacity and strength of the dough compared to allele c of Glu-B3. Tolerance to over-mixing was also significantly lower in translocated DH lines. In contrast to previously published work, the presence of allele Glu-D3 c resulted in significantly higher tenacity, and thus strength, compared with the allele Glu-D3 b in the present DH population. The final baking test performed on the DH lines of the population, combining favourable alleles for dough rheology and high protein content, demonstrated that in some cases lower tenacity induced by the 1BL.1RS translocation or by Glu-B3 b increases the volume of the loaves. (C) 2008 Elsevier Ltd. All rights reserved.
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