Overexpression of miR164b-resistant OsNAC2 improves plant architecture and grain yield in rice
文献类型： 外文期刊
作者： Jiang, Dagang 1 ; Chen, Weiting 1 ; Dong, Jingfang 1 ; Li, Jing 1 ; Yang, Fen 1 ; Wu, Zhichao 2 ; Zhou, Hai 1 ; Wang, Wen 1 ;
作者机构： 1.South China Agr Univ, Coll Life Sci, State Key Lab Conservat & Utilizat Subtrop Agrobi, Guangzhou 510642, Guangdong, Peoples R China
2.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
3.Chinese Acad Agr
关键词： Architecture; miRNA; OsNAC2; rice (Oryza sativa L.); yield
期刊名称：JOURNAL OF EXPERIMENTAL BOTANY （ 影响因子：6.992； 五年影响因子：7.86 ）
ISSN： 0022-0957
年卷期： 2018 年 69 卷 7 期
页码：
收录情况： SCI
摘要： Plant architecture is a major target of rice (Oryza sativa) breeding and selection, breeding and selection, but the underlying regulatory networks remain unclear. Here, we overexpressed an OsNAC2 mutant (OErN) that cannot be cleaved by the miRNA miR164b. OErN plants had better plant architecture and longer panicles, and produced more grains. The parental line averaged 12.2 primary and 31.5 secondary branches in the main panicles; two OErN lines averaged 15.0 and 15.2 primary, and 41.5 and 44.3 secondary branches. In large-scale field trials, OErN plants produced at least 58.62% more total grain (by weight) compared with the parental line. They also had more large and small vascular bundles in the stem internodes and leaves. Overexpression of miR164b or down-regulation of OsNAC2 led to decreased panicle length and grain yield in the main panicle. The OErN plants showed significant up-regulation of the grain number and plant architecture-related genes IPA1 and DEP1. A survey of > 3000 rice varieties found no natural mutations in the miR164b-binding site of OsNAC2. OErN increased yield in Nipponbare and the commonly grown Yangyujing 3 cultivars. In summary, we identified an efficient new strategy to increase rice yield substantially and improve plant architecture through overexpression of OsmiR164b-resistant OsNAC2.
- 相关文献
作者其他论文 更多>>
-
Evaluating Sustainable Development in the Middle and Lower Reaches of the Yellow River Basin Using Multiple Data Sources
作者：Lu, Yuefeng;Li, Jing;Song, Zhenqi;Lu, Yuefeng;Lu, Miao;Lu, Yuefeng;Lu, Miao
关键词：Rivers; Indexes; Sustainable development; Socioeconomics; Remote sensing; Water resources; Urban areas; Soil; Biological system modeling; Surface treatment; Ecological environment; influencing factors; middle and lower reaches of the Yellow River Basin; social economy; sustainable development
-
Invasive plants detection and distribution patterns analysis through self-attention enhanced semantic segmentation in UAV imagery and Moran's index
作者：Chao, Jun;Harty, Mary;Mcdonnell, Kevin;Wang, Kaiwen;Wang, Wensheng;Wang, Kaiwen;Xu, Beibei
关键词：Precision agriculture; Invasive plant; UAV; Semantic segmentation; Attention mechanism
-
Soil microbiome mediates plant community productivity in grass-legume mixtures
作者：Li, Jing;Zhang, Wenbo;Yang, Xiaojiang;Jiang, Shenyi;Wang, Zhen;Jin, Ke;Li, Jing;Xu, Zhuwen;Yang, Xiaojiang;Jiang, Shenyi;Struik, Paul C.
关键词：Grass-legume ratios; Symbiosis; Mycorrhizal fungi; Nitrogen-fixing bacteria; Plant productivity
-
Optimal Vase Solution for Gerbera hybrida Cut Flower Keeping Fresh by Activating SA and Cytokinin Signaling and Scavenging Reactive Oxygen Species
作者：Xia, Chaoshui;Cao, Yiyang;Gan, Weixin;Lin, Huifeng;Lin, Fazhuang;Chen, Weiting;Xia, Chaoshui;Cao, Yiyang;Gan, Weixin;Lin, Huifeng;Lin, Fazhuang;Chen, Weiting;Lin, Huifeng;Li, Huayang;Lu, Zhenhong
关键词：
Gerbera hybrida ; preservation; response surface; antioxidant activity; transcriptome -
Thermostability improvement of the glucose oxidase from Penicillium amagasakiense for efficient antimicrobial performance through computer-aided molecular design
作者：Peng, Ying-Zhi;Zhu, Xiao-Lu;He, Xiao-Xiao;Chen, Yi-Hao;Yang, Le-Yun;Zhao, Wei-Guo;Wang, Jun;You, Shuai;Peng, Ying-Zhi;Zhu, Xiao-Lu;He, Xiao-Xiao;Chen, Yi-Hao;Yang, Le-Yun;Zhao, Wei-Guo;Wang, Jun;You, Shuai;Lv, Xiang;Li, Jing
关键词：Penicillium amagasakiense GOD; Computer-aided molecular design; Thermostability; Flexible region; Molecular dynamics simulation; Bacteriostasis
-
Exploring the contribution of phosphatidylcholine and triglyceride on the formation of beef aroma-active compounds with thermal oxidation system
作者：Shi, Yujie;Li, Jing;Bai, Yueyu;Shi, Yujie;Li, Jing;Zhou, Longzhu;Zhang, Junmin;Feng, Xiaohui;Xing, Weihai;Tang, Chaohua
关键词：Phosphatidylcholine; Defatted beef matrix; Lipid oxidation; Flavoromics; Thermal oxidation model reconstruction
-
Investigation on the pro-aroma generation effects of fatty acids in beef via thermal oxidative models
作者：Zhou, Longzhu;Ren, Yimeng;Shi, Yujie;Zhao, Liyuan;Tian, Huihui;Feng, Xiaohui;Li, Jing;Yang, Youyou;Xing, Weihai;Yu, Yanan;Zhao, Qingyu;Zhang, Junmin;Tang, Chaohua;Ren, Yimeng;Shi, Yujie;Li, Jing
关键词：Fatty acid; Aroma compound; Thermal oxidative degradation; Beef; GC-O-MS
