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GrainGenes Reference Report: CRS-42-680

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Reference	CRS-42-680
Title	Mapping genes controlling variation in barley grain protein concentration
Journal	Crop Science
Year	2002
Volume	42
Pages	680-685
Author	See D Kanazin V Kephart K Blake T
Abstract	Summary: Grain protein concentration is an important determinant of grain quality in many crops, including wheat (Triticum aestivum L.) and barley (Hordeum vulgare L.). While high grain protein percentage might be desirable in barley destined for monogastric feed, low grain protein concentration is desirable for malt and beer production. Low grain protein concentration is associated with increased levels of malt extract and reduced problems with beer chill haze. Molecular markers were used to map and characterize the genes responsible for low, stable grain protein concentration in a recombinant inbred line population developed from a cross between 'Karl' (CIho 15487), a low grain protein six-rowed barley, and 'Lewis' (CIho 15856), a standard two-rowed cultivar. Three major quantitative trait loci (QTL) were identified which impacted grain protein percentage. Two of these grain protein effects appeared to result from gene action impacting flowering date. This pleiotropic relationship may be the main reason agronomically acceptable, low protein cultivars have yet to be released
Keyword	[ Hide all but 1 of 45 ] barley beer date determinant feed flowering flowering date fragment length polymorphism gene gene action genome grain protein grain protein concentration grain protein percentage grain quality haze hordeum hordeum vulgare inbred line linkage map locus malt map mapping mapping genes molecular marker nitrogen population production protein protein concentration qtl quality quantitative trait quantitative trait loci recombinant recombinant inbred line six-rowed spring barley sts-pcr trait trait loci triticum triticum aestivum two-rowed

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