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Expression of the Nitrate Transporter Gene OsNRT1.1A/OsNPF6.3 Confers High Yield and Early Maturatio

本站小编 Free考研/2020-05-26

Wei Wang, Bin Hu, Dingyang Yuan, Yongqiang Liu, Ronghui Che, Yingchun Hu, Shujun Ou, Zhihua Zhang, Hongru Wang, Hua Li, Zhimin Jiang, Zhengli Zhang, Xiaokai Gao, Yahong Qiu, Xiangbing Meng, Yongxin Liu, Yang Bai, Yan Liang, Yi-Qin Wang, Lianhe Zhang, Legong Li, Sodmergen Sodmergen, Hai-Chun Jing, Jiayang Li, Chengcai Chu

The Plant Cell


Abstract
Nitrogen (N) is a major driving force for crop yield improvement, but application of high levels of N delays flowering, prolonging maturation and thus increasing the risk of yield losses. Therefore, traits that enable utilization of high levels of N without delaying maturation will be highly desirable for crop breeding. Here we show that OsNRT1.1A (OsNPF6.3), a member of the rice (Oryza sativa L.) nitrate transporter 1/peptide transporter family, is involved in regulating N utilization and flowering, providing a target to produce high yield and early maturation simultaneously. OsNRT.1A has functionally diverged from previously reported NRT1.1 genes in plants, and functions in up-regulating the expression of N utilization-related genes not only for nitrate but also for ammonium, as well as flowering-related genes. Relative to wild type, osnrt1.1a mutants exhibited reduced N utilization and late flowering. By contrast, overexpression of OsNRT1.1A in rice greatly improved N utilization and grain yield, and maturation time was also significantly shortened. These effects were further confirmed in different rice backgrounds and also in Arabidopsis thaliana. Our study paves a path for the use of a single gene to dramatically increase yield and shorten maturation time for crops, outcomes that promise to substantially increase world food security.


论文编号: DOI:10.1105/tpc.17.00809
论文题目: Expression of the Nitrate Transporter Gene OsNRT1.1A/OsNPF6.3 Confers High Yield and Early Maturation in Rice
英文论文题目: Expression of the Nitrate Transporter Gene OsNRT1.1A/OsNPF6.3 Confers High Yield and Early Maturation in Rice
第一作者: Wei Wang, Bin Hu, Dingyang Yuan, Yongqiang Liu, Ronghui Che, Yingchun Hu, Shujun Ou, Zhihua Zhang, Hongru Wang, Hua Li, Zhimin Jiang, Zhengli Zhang, Xiaokai Gao, Yahong Qiu, Xiangbing Meng, Yongxin Liu, Yang Bai, Yan Liang, Yi-Qin Wang, Lianhe Zhang, Legong Li, Sodmergen Sodmergen, Hai-Chun Jing, Jiayang Li, Chengcai Chu
英文第一作者: Wei Wang, Bin Hu, Dingyang Yuan, Yongqiang Liu, Ronghui Che, Yingchun Hu, Shujun Ou, Zhihua Zhang, Hongru Wang, Hua Li, Zhimin Jiang, Zhengli Zhang, Xiaokai Gao, Yahong Qiu, Xiangbing Meng, Yongxin Liu, Yang Bai, Yan Liang, Yi-Qin Wang, Lianhe Zhang, Legong Li, Sodmergen Sodmergen, Hai-Chun Jing, Jiayang Li, Chengcai Chu
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发表年度: 2018-02-27
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摘要: Nitrogen (N) is a major driving force for crop yield improvement, but application of high levels of N delays flowering, prolonging maturation and thus increasing the risk of yield losses. Therefore, traits that enable utilization of high levels of N without delaying maturation will be highly desirable for crop breeding. Here we show that OsNRT1.1A (OsNPF6.3), a member of the rice (Oryza sativa L.) nitrate transporter 1/peptide transporter family, is involved in regulating N utilization and flowering, providing a target to produce high yield and early maturation simultaneously. OsNRT.1A has functionally diverged from previously reported NRT1.1 genes in plants, and functions in up-regulating the expression of N utilization-related genes not only for nitrate but also for ammonium, as well as flowering-related genes. Relative to wild type, osnrt1.1a mutants exhibited reduced N utilization and late flowering. By contrast, overexpression of OsNRT1.1A in rice greatly improved N utilization and grain yield, and maturation time was also significantly shortened. These effects were further confirmed in different rice backgrounds and also in Arabidopsis thaliana. Our study paves a path for the use of a single gene to dramatically increase yield and shorten maturation time for crops, outcomes that promise to substantially increase world food security.
英文摘要: Nitrogen (N) is a major driving force for crop yield improvement, but application of high levels of N delays flowering, prolonging maturation and thus increasing the risk of yield losses. Therefore, traits that enable utilization of high levels of N without delaying maturation will be highly desirable for crop breeding. Here we show that OsNRT1.1A (OsNPF6.3), a member of the rice (Oryza sativa L.) nitrate transporter 1/peptide transporter family, is involved in regulating N utilization and flowering, providing a target to produce high yield and early maturation simultaneously. OsNRT.1A has functionally diverged from previously reported NRT1.1 genes in plants, and functions in up-regulating the expression of N utilization-related genes not only for nitrate but also for ammonium, as well as flowering-related genes. Relative to wild type, osnrt1.1a mutants exhibited reduced N utilization and late flowering. By contrast, overexpression of OsNRT1.1A in rice greatly improved N utilization and grain yield, and maturation time was also significantly shortened. These effects were further confirmed in different rice backgrounds and also in Arabidopsis thaliana. Our study paves a path for the use of a single gene to dramatically increase yield and shorten maturation time for crops, outcomes that promise to substantially increase world food security.
刊物名称: The Plant Cell
英文刊物名称: The Plant Cell
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其它备注: Wei Wang, Bin Hu, Dingyang Yuan, Yongqiang Liu, Ronghui Che, Yingchun Hu, Shujun Ou, Zhihua Zhang, Hongru Wang, Hua Li, Zhimin Jiang, Zhengli Zhang, Xiaokai Gao, Yahong Qiu, Xiangbing Meng, Yongxin Liu, Yang Bai, Yan Liang, Yi-Qin Wang, Lianhe Zhang, Legong Li, Sodmergen Sodmergen, Hai-Chun Jing, Jiayang Li, Chengcai Chu. Expression of the Nitrate Transporter Gene OsNRT1.1A/OsNPF6.3 Confers High Yield and Early Maturation in Rice. The Plant Cell. DOI:10.1105/tpc.17.00809
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