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Peer-reviewedCC BY-NC-ND 4.0Nature Communications

An elite allele TaNPF7.6-A1mod enhances nitrogen use efficiency and grain yield in wheat

  • Di Jiang1,2,3
  • Chaojun Peng2,3
  • Yan Li2,3
  • Chen Gong2,3
  • Yuhui Fang2,3
  • Xingyu Zhang1
  • Zhaoyang Wang1,2,3
  • Xinnan Wang1,2,3
  • Lin Hu2,3
  • Xueli Qi2,3
  • Weigang Xu1,2,3
  1. 1College of Agronomy, Henan Agricultural University, Zhengzhou, China
  2. 2National Engineering Laboratory of Wheat, Key Laboratory of Wheat Biology and Genetic Breeding in Central Huanghuai Area, Ministry of Agriculture, Henan Key Laboratory of Wheat Germplasm Resources Innovation and Improvement, Institute of Crops Germplasm Resources, Henan Academy of Agricultural Sciences, Zhengzhou, China
  3. 3The Shennong Laboratory, Zhengzhou, China
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Abstract

Breeding wheat varieties with a high nitrogen use efficiency (NUE) reduces both production costs and threats to the ecological environment. Here, using candidate-gene and genome-wide association studies, we identify TaNPF7.6-A1 as a positive regulator of NUE in wheat. A widely conserved polymorphism in the coding region of TaNPF7.6-A1 produces allele TaNPF7.6-A1mod with a higher transcription level and nitrate transport activity than TaNPF7.6-A1lan, resulting in a greater NUE. We also reveal the mechanism by which TaEIL3-TaJAZ1-TaNPF7.6-A1 regulates NUE in wheat. TaNPF7.6-A1mod interacts more strongly with TaJAZ1 than TaNPF7.6-A1lan and promotes the retention of nuclear-localized TaJAZ1 in the cytoplasm. TaJAZ1 interacts with TaEIL3 and represses TaEIL3, binding to the TaNPF7.6-A1mod promoter, influencing allele expression and causing phenotypic differences. TaNPF7.6-A1mod also shows significant geographical distribution aggregation globally and undergoes continuous positive selection during the breeding process. Overall, this study provides molecular and evolutionary insights into the regulation of NUE.

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Cite

BibTeXRIS
BibTeX
@article{jiang2026elite,
  title = {{An elite allele TaNPF7.6-A1mod enhances nitrogen use efficiency and grain yield in wheat}},
  author = {Di Jiang and Chaojun Peng and Yan Li and Chen Gong and Yuhui Fang and Xingyu Zhang and Zhaoyang Wang and Xinnan Wang and Lin Hu and Xueli Qi and Weigang Xu},
  journal = {Nature Communications},
  year = {2026},
  month = sep,
  doi = {10.1038/s41467-026-76836-2},
  url = {https://doi.org/10.1038/s41467-026-76836-2},
  note = {CC BY-NC-ND 4.0},
}
RIS
TY  - JOUR
TI  - An elite allele TaNPF7.6-A1mod enhances nitrogen use efficiency and grain yield in wheat
AU  - Di Jiang
AU  - Chaojun Peng
AU  - Yan Li
AU  - Chen Gong
AU  - Yuhui Fang
AU  - Xingyu Zhang
AU  - Zhaoyang Wang
AU  - Xinnan Wang
AU  - Lin Hu
AU  - Xueli Qi
AU  - Weigang Xu
PY  - 2026
DA  - 2026/09/09
JO  - Nature Communications
DO  - 10.1038/s41467-026-76836-2
UR  - https://doi.org/10.1038/s41467-026-76836-2
AB  - Breeding wheat varieties with a high nitrogen use efficiency (NUE) reduces both production costs and threats to the ecological environment. Here, using candidate-gene and genome-wide association studies, we identify TaNPF7.6-A1 as a positive regulator of NUE in wheat. A widely conserved polymorphism in the coding region of TaNPF7.6-A1 produces allele TaNPF7.6-A1mod with a higher transcription level and nitrate transport activity than TaNPF7.6-A1lan, resulting in a greater NUE. We also reveal the mechanism by which TaEIL3-TaJAZ1-TaNPF7.6-A1 regulates NUE in wheat. TaNPF7.6-A1mod interacts more strongly with TaJAZ1 than TaNPF7.6-A1lan and promotes the retention of nuclear-localized TaJAZ1 in the cytoplasm. TaJAZ1 interacts with TaEIL3 and represses TaEIL3, binding to the TaNPF7.6-A1mod promoter, influencing allele expression and causing phenotypic differences. TaNPF7.6-A1mod also shows significant geographical distribution aggregation globally and undergoes continuous positive selection during the breeding process. Overall, this study provides molecular and evolutionary insights into the regulation of NUE.
SN  - 2041-1723
ER  -