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QTL Mapping for Root Traits and Their Effects on Nutrient Uptake and Yield Performance in Common Wheat ( Triticum aestivum L.)

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  • Yanhua Xu

    (College of Life Sciences, Zhengzhou Normal University, Zhengzhou 450044, China
    State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China)

  • Yuzhen Yang

    (College of Life Sciences, Zhengzhou Normal University, Zhengzhou 450044, China)

  • Si Wu

    (College of Life Sciences, Zhengzhou Normal University, Zhengzhou 450044, China)

  • Dongcheng Liu

    (State Key Laboratory of North China Crop Improvement and Regulation, College of Agronomy, Hebei Agricultural University, Baoding 071001, China)

  • Yongzhe Ren

    (State Key Laboratory of Wheat and Maize Crop Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China)

Abstract

Wheat is one of the most important crops in the world. Mapping QTLs for root traits is essential for the selection of wheat roots desirable for the efficient acquisition of nutrients. Here, a QTL analysis for wheat root traits was performed using 142 recombinant inbred lines derived from two wheat varieties Xiaoyan 54 and Jing 411 in a soil column culture trial. The genetic map used in this study contained 470 SSR markers and covered 3438.4 cM of wheat genome. A total of 25 QTLs for root and shoot traits were detected, located at 16 marker intervals of 13 chromosomes. The percentage of phenotypic variation explained by individual QTLs varied from 6.1% to 22.0%. The QTLs regulating RDW and root distribution on chromosomes 1A, 3A, 4A, and 5B are important for root growth in both the top- and subsoils. For qRDW-1A , qRDW-3A, and qRDW-5B , the nearest markers to the QTLs were much closer than that of qRDW-4A , with the genetic distances ranging from 0.01 to 1.18 cM. Combining these three QTLs not only increased RDW and nutrient uptake, but also increased GW, SDW, and BDW under low nitrogen conditions in the field trial. Therefore, these QTLs are valuable for marker-assisted selection of wheat root traits.

Suggested Citation

  • Yanhua Xu & Yuzhen Yang & Si Wu & Dongcheng Liu & Yongzhe Ren, 2023. "QTL Mapping for Root Traits and Their Effects on Nutrient Uptake and Yield Performance in Common Wheat ( Triticum aestivum L.)," Agriculture, MDPI, vol. 13(1), pages 1-12, January.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:1:p:210-:d:1035999
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    References listed on IDEAS

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    1. Allen G Good & Perrin H Beatty, 2011. "Fertilizing Nature: A Tragedy of Excess in the Commons," Working Papers id:4387, eSocialSciences.
    2. Allen G Good & Perrin H Beatty, 2011. "Fertilizing Nature: A Tragedy of Excess in the Commons," PLOS Biology, Public Library of Science, vol. 9(8), pages 1-9, August.
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    Keywords

    QTL; root; low nitrogen; yield; wheat;
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