文献类型： 外文期刊
作者： Zhang, Xiaoyu 1 ; Jia, Haiyan 1 ; Li, Tian 1 ; Wu, Jizhong 1 ; Nagarajan, Ragupathi 1 ; Lei, Lei 1 ; Powers, Carol 1 ; Kan, Chia-Cheng 1 ; Hua, Wei 5 ; Liu, Zhiyong 6 ; Chen, Charles 7 ; Carver, Brett F. 1 ; Yan, Liuling 1 ;
作者机构： 1.Oklahoma State Univ, Dept Plant & Soil Sci, Stillwater, OK 74078 USA
2.Nanjing Agr Univ, Appl Plant Genom Lab, Natl Key Lab Crop Genet & Germplasm Enhancement, Nanjing 210095, Jiangsu, Peoples R China
3.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Gene Resources & Germplasm Enhanceme, Beijing 100081, Peoples R China
4.Jiangsu Acad Agr Sci, Inst Germplasm Resources & Biotechnol, Nanjing 210014, Jiangsu, Peoples R China
5.Zhejiang Acad Agr Sci, Hangzhou 310021, Peoples R China
6.Chinese Acad Sci, Inst Genet & Dev Biol, Beijing 100101, Peoples R China
7.Oklahoma State Univ, Dept Biochem & Mol Biol, Stillwater, OK 74078 USA
期刊名称：SCIENCE （ 影响因子：63.714； 五年影响因子：59.924 ）
ISSN： 0036-8075
年卷期： 2022 年 376 卷 6589 期
页码：
收录情况： SCI
摘要： Spike architecture influences grain yield in wheat. We report the map-based cloning of a gene determining the number of spikelet nodes per spike in common wheat. The cloned gene is named TaCOL-B5 and encodes a CONSTANS-like protein that is orthologous to COL5 in plant species. Constitutive overexpression of the dominant TaCol-B5 allele but without the region encoding B-boxes in a common wheat cultivar increases the number of spikelet nodes per spike and produces more tillers and spikes, thereby enhancing grain yield in transgenic plants under field conditions. Allelic variation in TaCOL-B5 results in amino acid substitutions leading to differential protein phosphorylation by the protein kinase TaK4. The TaCol-B5 allele is present in emmer wheat but is rare in a global collection of modern wheat cultivars.
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