您好，欢迎访问北京市农林科学院 机构知识库！
北京市农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Evolution of a SHOOTMERISTEMLESS transcription factor binding site promotes fruit shape determination

文献类型： 外文期刊

作者： Hu, Zhi-Cheng 1 ; Majda, Mateusz 4 ; Sun, Hao-Ran 1 ; Zhang, Yao 1 ; Ding, Yi-Ning 1 ; Yuan, Quan 1 ; Su, Tong-Bing 6 ; Lu, Tian-Feng 1 ; Gao, Feng 1 ; Xu, Gui-Xia 1 ; Smith, Richard S. 5 ; Ostergaard, Lars 7 ; Dong, Yang 1 ;

作者机构： 1.Chinese Acad Sci, Inst Bot, State Key Lab Plant Divers & Specialty Crops, Beijing, Peoples R China

2.Univ Chinese Acad Sci, Beijing, Peoples R China

3.China Natl Bot Garden, Beijing, Peoples R China

4.Univ Lausanne, Dept Plant Mol Biol, Lausanne, Switzerland

5.John Innes Ctr, Computat & Syst Biol Dept, Norwich, England

6.Beijing Acad Agr & Forestry Sci, Beijing Vegetable Res Ctr, Beijing, Peoples R China

7.John Innes Ctr, Crop Genet Dept, Norwich, England

8.Univ Oxford, Dept Biol, Oxford, England

期刊名称：NATURE PLANTS （ 影响因子：13.6； 五年影响因子：17.0 ）

ISSN： 2055-026X

年卷期： 2025 年 11 卷 1 期

页码：

收录情况： SCI

摘要： In animals and plants, organ shape is primarily determined during primordium development by carefully coordinated growth and cell division1, 2-3. Rare examples of post-primordial change in morphology (reshaping) exist that offer tractable systems for the study of mechanisms required for organ shape determination and diversification. One such example is morphogenesis in Capsella fruits whose heart-shaped appearance emerges by reshaping of the ovate spheroid gynoecium upon fertilization4. Here we use whole-organ live-cell imaging and single-cell RNA sequencing (scRNA-seq) analysis to show that Capsella fruit shape determination is based on dynamic changes in cell growth and cell division coupled with local maintenance of meristematic identity. At the molecular level, we reveal an auxin-induced mechanism that is required for morphological alteration and ultimately determined by a single cis-regulatory element. This element resides in the promoter of the Capsella rubella SHOOTMERISTEMLESS5 (CrSTM) gene. The CrSTM meristem identity factor positively regulates its own expression through binding to this element, thereby providing a feed-forward loop at the position and time of protrusion emergence to form the heart. Independent evolution of the STM-binding element in STM promoters across Brassicaceae species correlates with those undergoing a gynoecium-to-fruit shape change. Accordingly, genetic and phenotypic studies show that the STM-binding element is required to facilitate the shape transition and suggest a conserved molecular mechanism for organ morphogenesis.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：北京市农林科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台