J Integr Plant Biol.
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Two linked nitrate reductase genes CR8.1 and CR8.2 positively coregulate yield and NUE in rice
Linlin Hou1†, Dongdong Chen1†, Guang Chen1†, Jiajia Liu1, Hongge Qian2, Lianguang Shang2, Xiangjian Pan1, Shenghang Jiang1, Guangheng Zhang1, Longbiao Guo1, Guojun Dong1, Li Zhu1, Jiang Hu1, Qing Li1, Lan Shen1, Qiang Zhang1, Qian Qian1, 3, 4*, Guoyou Ye2, 5, 6* and Zhenyu Gao1*
- 1. State Key Laboratory of Rice Biology and Breeding, China National Rice Research Institute, Hangzhou, 310006 Zhejiang, China;
2. Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, 518120 Guangdong, China;
3. Hainan Yazhou Bay National Laboratory, Sanya, 572000 Hainan, China;
4. National Nanfan Research Institute, Chinese Academy of Agricultural Sciences, Sanya, 572024 Hainan, China;
5. Africa Rice Center (AfricaRice) HeadQuarters, Abidjan, BP 4029 Côte d'Ivoire;
6. Strategic Innovation Platform, International Rice Research Institute, Metro Manila, 1301 Philippines
†These authors contributed equally to this work.
*Correspondences: Zhenyu Gao (gaozhenyu@caas.cn, Dr. Gao is fully responsible for the distribution of all materials associated with this article); Guoyou Ye (yeguoyou@caas.cn); Qian Qian (qianqian188@hotmail.com)
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Received:2026-02-11
Revised:2026-09-05
Accepted:2026-09-20
Online:2026-10-19
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Supported by:This work was supported by the National Natural Science Foundation of China (32188102, 32061143039), the National Key Research and Development Program of China (2022YFD1200104), the Major Science and Technology Project of Inner Mongolia Autonomous Region of China (2025KJTW0029), and the Agricultural Science and Technology Innovation Program of Chinese Academy of Agricultural Sciences (CAAS-CSNCB-202301 and CAAS-ZDRW202501). We thank the Public Laboratory of China National Rice Research Institute for their technical support in GFP fluorescence observations with a laser scanning confocal microscope.
