数字农科院2.0

Unlocking tillering repression through TEOSINTE BRANCHED-B1 mutagenesis enhances wheat grain yield

文献类型： 外文期刊

作者： Xiangqing Liu; Long Song; Xiliu Cheng; Yanming Ma; Haoran Wang; Yiqing Wang; Jinghui Li; Hongcui Pei; Zefu Lu; Bin Yang; Mingyi Zhang; Qingyi Wang;Moussa Benhamed; Zhongfu Ni; Qixin Sun and Jie Liu*

关键词： Green Revolution;;TB1

期刊名称： Plant Communications

ISSN： 2590-3462

年卷期： 2025 年

页码：

收录情况： SCIE（2025版） ; ; CSCD（2025-2026年度）

摘要： Wheat (Triticum aestivum) is one of the world’s most important staple food crops, providing approximately 20% of human caloric intake (Cheng et al., 2024). The development of modern high- yield wheat varieties requires a semi-dwarf plant architecture, as reduced plant height improves lodging resistance and harvest index, thereby enhancing yield potential and stability. Since the 1960s, two plant height-reducing genes, Reduced height-B1b (Rht-B1b; the dominant mutant form of Rht-B1a) and Rht-D1b (the dominant mutant form of Rht-D1a), have been used world- wide to confer semi-dwarf plant architecture. These genes, known as the ‘‘Green Revolution’’ genes, provide desirable re- ductions in plant height and increases in tiller number. However, they also strongly reduce grain weight and nitrogen-use effi- ciency, which partially attenuates the yield potential of semi- dwarf wheat varieties

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