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GrainGenes Reference Report: PBR-120-13

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Reference	PBR-120-13
Title	Genetic analysis of bread-making quality in wheat and spelt
Journal	Plant Breeding
Year	2001
Volume	120
Pages	13-19
Author	Zanetti S Winzeler M Feuillet C Keller B Messmer M
Abstract	Summary: Bread-making quality in wheat and spelt reflects the combination of several, mostly quantitatively inherited parameters. The aim was to find molecular markers linked to quantitative trait loci (QTL) for quality parameters. Zeleny sedimentation values (Zel), protein (Prot), kernel hardness (KH) and 1000-kernel weight (TKW) of 226 F5 recombinant inbred lines (RILs) from a cross between wheat and spelt were assessed in different environments. The dough properties of 204 RILs were assessed with an alveograph. Based on a genetic map of 187 loci, nine QTL were found for Zel and Prot, explaining 47% and 51% of the phenotypic variance, respectively. Fifty-four per cent of the variance was explained by 10 QTL for KH and eight for TKW. For the alveograph parameters 10 QTL were found for baking strength, nine for tenacity, seven for configuration ratio, and four for elasticity index and extensibility. The phenotypic variance explained ranged from 25% to 48%. The population mean of the dough parameters was shifted towards the spelt parent. It is concluded that non-additive effects are crucial in the expression of high bread-making quality of wheat. The consequences for wheat and spelt breeding programmes are discussed
Keyword	[ Hide all but 1 of 44 ] alveograph baking breadmaking breadmaking quality breeding cross dough dough properties dough property elasticity environment extensibility gel-electrophoretic analyses genetic genetic analysis genetic map hardness inbred lines index kernel hardness leaf rust resistance loci map marker molecular marker parameters population properties prot qtl quality quality parameters quantitative trait quantitative trait loci recombinant inbred line rils sedimentation volume seed storage protein spelt triticum aestivum triticum spelta variance weight winter wheat

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