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The indica nitrate reductase gene OsNR2 allele enhances rice yield potential and nitrogen use efficiency

Author

Listed:
  • Zhenyu Gao

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Yufeng Wang

    (Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences)

  • Guang Chen

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Anpeng Zhang

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Shenglong Yang

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Lianguang Shang

    (Lingnan Laboratory of Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences)

  • Danying Wang

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Banpu Ruan

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Chaolei Liu

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Hongzhen Jiang

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Guojun Dong

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Li Zhu

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Jiang Hu

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Guangheng Zhang

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Dali Zeng

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Longbiao Guo

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences)

  • Guohua Xu

    (Nanjing Agricultural University)

  • Sheng Teng

    (Institute of Plant Physiology and Ecology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences)

  • Nicholas P. Harberd

    (University of Oxford)

  • Qian Qian

    (State Key Laboratory of Rice Biology, China National Rice Research Institute, Chinese Academy of Agricultural Sciences
    Lingnan Laboratory of Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences)

Abstract

The indica and japonica rice (Oryza sativa) subspecies differ in nitrate (NO3−) assimilation capacity and nitrogen (N) use efficiency (NUE). Here, we show that a major component of this difference is conferred by allelic variation at OsNR2, a gene encoding a NADH/NADPH-dependent NO3− reductase (NR). Selection-driven allelic divergence has resulted in variant indica and japonica OsNR2 alleles encoding structurally distinct OsNR2 proteins, with indica OsNR2 exhibiting greater NR activity. Indica OsNR2 also promotes NO3− uptake via feed-forward interaction with OsNRT1.1B, a gene encoding a NO3− uptake transporter. These properties enable indica OsNR2 to confer increased effective tiller number, grain yield and NUE on japonica rice, effects enhanced by interaction with an additionally introgressed indica OsNRT1.1B allele. In consequence, indica OsNR2 provides an important breeding resource for the sustainable increases in japonica rice yields necessary for future global food security.

Suggested Citation

  • Zhenyu Gao & Yufeng Wang & Guang Chen & Anpeng Zhang & Shenglong Yang & Lianguang Shang & Danying Wang & Banpu Ruan & Chaolei Liu & Hongzhen Jiang & Guojun Dong & Li Zhu & Jiang Hu & Guangheng Zhang &, 2019. "The indica nitrate reductase gene OsNR2 allele enhances rice yield potential and nitrogen use efficiency," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-13110-8
    DOI: 10.1038/s41467-019-13110-8
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    Cited by:

    1. Shilei Liu & Wenli Zou & Xiang Lu & Jianmin Bian & Haohua He & Jingguang Chen & Guoyou Ye, 2021. "Genome-Wide Association Study Using a Multiparent Advanced Generation Intercross (MAGIC) Population Identified QTLs and Candidate Genes to Predict Shoot and Grain Zinc Contents in Rice," Agriculture, MDPI, vol. 11(1), pages 1-14, January.
    2. Nkulu Rolly Kabange & So-Yeon Park & Dongjin Shin & So-Myeong Lee & Su-Min Jo & Youngho Kwon & Jin-Kyung Cha & You-Chun Song & Jong-Min Ko & Jong-Hee Lee, 2020. "Identification of a Novel QTL for Chlorate Resistance in Rice ( Oryza sativa L.)," Agriculture, MDPI, vol. 10(8), pages 1-16, August.

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