Nature Communications
Abstract
In crops, nitrogen directly determines productivity and biomass. However, the improvement of nitrogen utilization efficiency (NUE) is still a major challenge in modern agriculture. Here, we report the characterization of are1, a genetic suppressor of a rice fd-gogat mutant defective in nitrogen assimilation. ARE1 is a highly conserved gene, encoding a chloroplast-localized protein. Loss-of-function mutations in ARE1 cause delayed senescence and result in 10–20% grain yield increases, hence enhance NUE under nitrogen-limiting conditions. Analysis of a panel of 2155 rice varieties reveals that 18% indica and 48% aus accessions carry small insertions in the ARE1 promoter, which result in a reduction in ARE1 expression and an increase in grain yield under nitrogen-limiting conditions. We propose that ARE1 is a key mediator of NUE and represents a promising target for breeding high-yield cultivars under nitrogen-limiting condition.
| 论文编号: | DOI:10.1038/s41467-017-02781-w |
| 论文题目: | Genetic Variations in ARE1 Mediate Grain Yield by Modulating Nitrogen Utilization in Rice |
| 英文论文题目: | Genetic Variations in ARE1 Mediate Grain Yield by Modulating Nitrogen Utilization in Rice |
| 第一作者: | Qing Wang, Jinqiang Nian, Xianzhi Xie, Hong Yu, Jian Zhang, Jiaoteng Bai, Guojun Dong, Jiang Hu, Bo Bai, Lichao Chen, Qingjun Xie, Jian Feng, Xiaolu Yang, Juli Peng, Fan Chen, Qian Qian, Jiayang Li, Jianru Zuo |
| 英文第一作者: | Qing Wang, Jinqiang Nian, Xianzhi Xie, Hong Yu, Jian Zhang, Jiaoteng Bai, Guojun Dong, Jiang Hu, Bo Bai, Lichao Chen, Qingjun Xie, Jian Feng, Xiaolu Yang, Juli Peng, Fan Chen, Qian Qian, Jiayang Li, Jianru Zuo |
| 联系作者: | |
| 英文联系作者: | |
| 外单位作者单位: | |
| 英文外单位作者单位: | |
| 发表年度: | 2018-02-27 |
| 卷: | |
| 期: | |
| 页码: | |
| 摘要: | In crops, nitrogen directly determines productivity and biomass. However, the improvement of nitrogen utilization efficiency (NUE) is still a major challenge in modern agriculture. Here, we report the characterization of are1, a genetic suppressor of a rice fd-gogat mutant defective in nitrogen assimilation. ARE1 is a highly conserved gene, encoding a chloroplast-localized protein. Loss-of-function mutations in ARE1 cause delayed senescence and result in 10–20% grain yield increases, hence enhance NUE under nitrogen-limiting conditions. Analysis of a panel of 2155 rice varieties reveals that 18% indica and 48% aus accessions carry small insertions in the ARE1 promoter, which result in a reduction in ARE1 expression and an increase in grain yield under nitrogen-limiting conditions. We propose that ARE1 is a key mediator of NUE and represents a promising target for breeding high-yield cultivars under nitrogen-limiting condition. |
| 英文摘要: | In crops, nitrogen directly determines productivity and biomass. However, the improvement of nitrogen utilization efficiency (NUE) is still a major challenge in modern agriculture. Here, we report the characterization of are1, a genetic suppressor of a rice fd-gogat mutant defective in nitrogen assimilation. ARE1 is a highly conserved gene, encoding a chloroplast-localized protein. Loss-of-function mutations in ARE1 cause delayed senescence and result in 10–20% grain yield increases, hence enhance NUE under nitrogen-limiting conditions. Analysis of a panel of 2155 rice varieties reveals that 18% indica and 48% aus accessions carry small insertions in the ARE1 promoter, which result in a reduction in ARE1 expression and an increase in grain yield under nitrogen-limiting conditions. We propose that ARE1 is a key mediator of NUE and represents a promising target for breeding high-yield cultivars under nitrogen-limiting condition. |
| 刊物名称: | Nature Communications |
| 英文刊物名称: | Nature Communications |
| 论文全文: | |
| 英文论文全文: | |
| 全文链接: | |
| 其它备注: | Qing Wang, Jinqiang Nian, Xianzhi Xie, Hong Yu, Jian Zhang, Jiaoteng Bai, Guojun Dong, Jiang Hu, Bo Bai, Lichao Chen, Qingjun Xie, Jian Feng, Xiaolu Yang, Juli Peng, Fan Chen, Qian Qian, Jiayang Li, Jianru Zuo. Genetic Variations in ARE1 Mediate Grain Yield by Modulating Nitrogen Utilization in Rice. Nature Communications. DOI:10.1038/s41467-017-02781-w |
| 英文其它备注: | |
| 学科: | |
| 英文学科: | |
| 影响因子: | |
| 第一作者所在部门: | |
| 英文第一作者所在部门: | |
| 论文出处: | |
| 英文论文出处: | |
| 论文类别: | |
| 英文论文类别: | |
| 参与作者: | |
| 英文参与作者: |
