AcRR1 of Agropyron cristatum boosts wheat yield by regulating grain number per spike and heading date
文献类型： 外文期刊
作者： Yang, Wenjing 1 ; Han, Haiming 1 ; Ma, Huihui 2 ; Yang, Ping 1 ; Niu, Jianqing 3 ; Liu, Xinye 4 ; Zhang, Jinpeng 1 ; Zhou, Shenghui 1 ; Qi, Kai 1 ; Guo, Baojin 1 ; Lin, Yida 3 ; Yang, Xinming 1 ; Guo, Xiaomin 3 ; Ling, Hong-Qing 3 ; Li, Lihui 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, State Key Lab Crop Gene Resources & Breeding, Key Lab Grain Crop Genet Resources Evaluat & Utili, Beijing, Peoples R China
2.Zaozhuang Univ, Coll Life Sci, Zaozhuang, Peoples R China
3.Yazhouwan Natl Lab, Sanya, Peoples R China
4.Hebei Normal Univ, Hebei Collaborat Innovat Ctr Cell Signaling & Envi, Coll Life Sci, Minist Educ,Key Lab Mol & Cellular Biol,Hebei Key, Shijiazhuang, Peoples R China
期刊名称：NATURE COMMUNICATIONS （ 影响因子：15.7； 五年影响因子：17.2 ）
ISSN：
年卷期： 2025 年 16 卷 1 期
页码：
收录情况： SCI
摘要： Uncovering desirable alien genes from wild species is important for increasing genetic variation and ensuring wheat production. Here, we identify a type-B response regulator (RR) AcRR1 of Agropyron cristatum. Ectopic expression of AcRR1 in common wheat increases the grain number per spike without decreasing the grain weight, thereby enhancing the grain yield by 9.7-12.3% under field conditions. Expression of the AcRR1 gene also promotes plant growth and shortens the duration of vernalization in the transgenic plants. We reveal that AcRR1 reprogrammes diverse transcriptional processes in wheat by activating the expression of TaWOX11-2D and TabHLH25-5B-TaFTs, which are involved in floret fertility and early heading. Our results demonstrate that AcRR1 from A. cristatum is a valuable alien gene with the capacity to activate genetic networks for wheat yield formation, offering a promising avenue for enhancing wheat productivity through the introduction of alien genes.
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