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Quantitative trait loci influencing end-use quality traits of hard red spring wheat breeding lines

Author

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  • T. J. TSILO

    (Department of Agronomy and Plant Genetics, University of Minnesota, MN 55108 St. Paul, USA
    Agricultural Research Council - Small Grain Institute, 9700 Bethlehem, South Africa)

  • J.-B. OHM

    (Cereal Crops Research Unit, Red River Valley Research Center, United States Department of Agriculture-Agricultural Research Service, ND 58105 Fargo, USA)

  • G.A. HARELAND

    (Cereal Crops Research Unit, Red River Valley Research Center, United States Department of Agriculture-Agricultural Research Service, ND 58105 Fargo, USA)

  • S. CHAO

    (Cereal Crops Research Unit, Red River Valley Research Center, United States Department of Agriculture-Agricultural Research Service, ND 58105 Fargo, USA)

  • J.A. ANDERSON

    (Department of Agronomy and Plant Genetics, University of Minnesota, MN 55108 St. Paul, USA)

Abstract

Wheat bread-making quality is influenced by a complex group of traits including dough visco-elastic characteristics. In this study, quantitative trait locus/loci (QTL) mapping and analysis were conducted for endosperm polymeric proteins together with dough mixing strength and bread-making properties in a population of 139 (MN98550 × MN99394) recombinant inbred lines that was evaluated at three environments in 2006. Eleven chromosome regions were associated with endosperm polymeric proteins, explaining 4.2-31.8% of the phenotypic variation. Most of these polymeric proteins QTL coincided with several QTL for dough-mixing strength and bread-making properties. Major QTL clusters were associated with the low-molecular weight glutenin gene Glu-A3, the two high-molecular weight glutenin genes Glu-B1 and Glu-D1, and two regions on chromosome 6D. Alleles at these QTL clusters have previously been proven useful for wheat quality except one of the 6D QTL clusters.

Suggested Citation

  • T. J. Tsilo & J.-B. Ohm & G.A. Hareland & S. Chao & J.A. Anderson, 2011. "Quantitative trait loci influencing end-use quality traits of hard red spring wheat breeding lines," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 47(SpecialIs), pages 190-195.
    • Handle: RePEc:caa:jnlcjg:v:47:y:2011:i:specialissue:id:3279-cjgpb
    DOI: 10.17221/3279-CJGPB
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    Keywords

    quantitative trait locus; wheat quality;

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