数字农科院2.0

SHORT INTERNODE1 regulates the activity of MADS transcription factors during rice floral organ development

文献类型： 外文期刊

作者： Erchao Duan;Xuan Teng;Huan Xu;Wenyu Ma;Desheng Zhang;Rushuang Zhang;Chuanwei Gu;Yipeng Zhang;Rongbo Chen;Xiaoli Chen;Miao Feng;Qibing Lin;Hui Dong;Yuanyan Zhang;Xue Yang;Lei Zhou;Shijia Liu;Xi Liu;Yunlu Tian;Ling Jiang;Haiyang Wang;Yihua Wang;Jianmin Wan

作者机构：

关键词： SHORT INTERNODE1

期刊名称： Plant Physiology

ISSN： 0032-0889

年卷期： 2025 年 197 卷 2 期

页码：

收录情况： SCIE（2025版）

摘要： Floral organ identity is fundamental to species diversity and reproductive success in plants and is mainly determined by the combinatorial action of MADS homeotic factors. However, despite their conserved roles in specifying floral organ identity, the regulation of MADS transcription factors remains elusive. Here, we show that the rice (Oryza sativa L.) short internode1 (shi1) mutant displays pleiotropic defects in floral organ development, resulting in severe penalties to yield and grain quality. OsSHI1 mRNA accumulates in each floral organ whorl, and OsSHI1 interacts with multiple MADS transcription factors, especially the Class E members. This physical interaction occurs through the intrinsic MADS domains, thus regulating the transcriptional activity of the MADS transcription factors. This study provides insight into the molecular and genetic regulatory mechanisms underlying the roles of OsSHI1 and MADS transcription factors in rice floral organ development and, consequently, grain yield and quality.

分类号：

  • 相关文献
作者其他论文 更多>>