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GrainGenes Reference Report: CRS-37-1586

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Reference	CRS-37-1586
Title	Mapping gene(s) for grain protein in tetraploid wheat (Triticum turgidum L.) using a population of recombinant inbred chromosome lines.
Journal	Crop Science
Year	1997
Volume	37
Pages	1586-1589
Author	Joppa LR Du C Hart GE Hareland GA
Abstract	A 'Langdon' durum wheat line with a pair of 6B chromosomes from an accession of Triticum turgidum L. var. dicoccoides (Korn. in litt., in Schweinf.) Bowden (LDN(DIC-6B)) previously was shown to have a gene(s) for high grain protein content (GPC). The objectives of this study were to develop a mapping population segregating only for genes on chromosome 6B, map the gene(s) for high GPC, and identify closely linked markers for use in marker-assisted breeding for this trait. The 6B mapping population was grown in replicated field trials and evaluated for GPC. A restriction fragment length polymorphism (RFLP) map of this population was available. The quantitative trait locus (QTL) analyses provided strong evidence that a genets) for high GPC (named QGpc.ndsu-6Bb) is located near the centromere of 6B. The most likely location for the gene(s) is in the short arm between Xabg387-6B and Xmwg79-6B. The logarithm of the odds (LOD) score for this interval is 18.9. Segregation in this segment accounted for 66% of the variation in GPC. Eleven additional markers have been mapped within 7 centimorgans (cM) of the midpoint of Xabg387-6B and Xmwg79-6B. One or more of these markers should be useful in marker-assisted breeding for high GPC in durum wheat.
External Databases	https://doi.org/10.2135/cropsci1997.0011183X003700050030x
Allele	Gpc-B1a (Triticum)
QTL	QGpc.ndsu-6B QGpc.ndsu-6Ba QGpc.ndsu-6Bb

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