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MYB61 is regulated by GRF4 and promotes nitrogen utilization and biomass production in rice

Author

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  • Yihong Gao

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Zuopeng Xu

    (Chinese Academy of Sciences
    Yangzhou University)

  • Lanjun Zhang

    (Chinese Academy of Sciences)

  • Shance Li

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Shaogan Wang

    (Chinese Academy of Sciences)

  • Hanlei Yang

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

  • Xiangling Liu

    (Chinese Academy of Sciences)

  • Dali Zeng

    (Chinese Academy of Agricultural Sciences)

  • Qiaoquan Liu

    (Yangzhou University)

  • Qian Qian

    (Chinese Academy of Agricultural Sciences)

  • Baocai Zhang

    (Chinese Academy of Sciences)

  • Yihua Zhou

    (Chinese Academy of Sciences
    University of Chinese Academy of Sciences)

Abstract

Nitrogen (N) is a macronutrient that boosts carbon (C) metabolism and plant growth leading to biomass accumulation. The molecular connection between nitrogen utilization efficiency (NUE) and biomass production remains unclear. Here, via quantitative trait loci analysis and map-based cloning, we reveal that natural variation at the MYB61 locus leads to differences in N use and cellulose biogenesis between indica and japonica subspecies of rice. MYB61, a transcriptional factor that regulates cellulose synthesis, is directly regulated by a known NUE regulator GROWTH-REGULATING FACTOR4 (GRF4), which coordinates cellulosic biomass production and N utilization. The variation at MYB61 has been selected during indica and japonica domestication. The indica allele of MYB61 displays robust transcription resulting in higher NUE and increased grain yield at reduced N supply than that of japonica. Our study hence unravels how C metabolism is linked to N uptake and may provide an opportunity to reduce N use for sustainable agriculture.

Suggested Citation

  • Yihong Gao & Zuopeng Xu & Lanjun Zhang & Shance Li & Shaogan Wang & Hanlei Yang & Xiangling Liu & Dali Zeng & Qiaoquan Liu & Qian Qian & Baocai Zhang & Yihua Zhou, 2020. "MYB61 is regulated by GRF4 and promotes nitrogen utilization and biomass production in rice," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-19019-x
    DOI: 10.1038/s41467-020-19019-x
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    Cited by:

    1. Yunlong Liu & Siyu Zhang & Haoyu Qian & Chengbo Shen & Shuijin Hu & Weijian Zhang & Yong Wang & Shan Huang & Songhan Wang & Zhenghui Liu & Ganghua Li & Xiangdong Fu & Yanfeng Ding & Shan Li & Kees Jan, 2025. "Variation in a single allele drives divergent yield responses to elevated CO2 between rice subspecies," Nature Communications, Nature, vol. 16(1), pages 1-12, December.

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