您好，欢迎访问宁夏农林科学院 机构知识库！
宁夏农林科学院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

The miR319/TaGAMYB3 module regulates plant architecture and improves grain yield in common wheat (Triticum aestivum)

文献类型： 外文期刊

作者： Jian, Chao 1 ; Hao, Pingan 2 ; Hao, Chenyang 1 ; Liu, Shujuan 1 ; Mao, Hude 3 ; Song, Qilu 3 ; Zhou, Yongbin 1 ; Yin, Shuining 4 ; Hou, Jian 1 ; Zhang, Weijun 5 ; Zhao, Huixian 2 ; Zhang, Xueyong 1 ; Li, Tian 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Crop Sci, Key Lab Crop Gene Resources & Germplasm Enhanceme, Beijing 100081, Peoples R China

2.Northwest A&F Univ, Coll Life Sci, Yangling 712100, Shaanxi, Peoples R China

3.Northwest A&F Univ, Coll Plant Protect, Yangling 712100, Shaanxi, Peoples R China

4.Chinese Acad Sci, Inst Plant Physiol & Ecol, CAS Ctr Excellence Mol Plant Sci, Shanghai 200032, Peoples R China

5.Ningxia Acad Agr & Forestry Sci, Crop Res Inst, Yinchuan 750002, Ningxia, Peoples R China

关键词： grain yield; plant architecture; TaBA1; tae-miR319; TaGAMYB3; TaPCF8; Triticum aestivum

期刊名称：NEW PHYTOLOGIST （ 影响因子：10.323； 五年影响因子：10.768 ）

ISSN： 0028-646X

年卷期： 2022 年 235 卷 4 期

页码：

收录情况： SCI

摘要： Plant architecture is a key determinant of crop productivity and adaptation. The highly conserved microRNA319 (miR319) family functions in various biological processes, but little is known about how miR319 regulates plant architecture in wheat (Triticum aestivum). Here, we determined that the miR319/TaGAMYB3 module controls plant architecture and grain yield in common wheat. Repressing tae-miR319 using short tandem target mimics resulted in favorable plant architecture traits, including increased plant height, reduced tiller number, enlarged spikes and flag leaves, and thicker culms, as well as enhanced grain yield in field plot tests. Overexpressing tae-miR319 had the opposite effects on plant architecture and grain yield. Although both TaPCF8 and TaGAMYB3 were identified as miR319 target genes, genetic complementation assays demonstrated that only miR319-resistant TaGAMYB3 (rTaGAMYB3) abolished tae-miR319-mediated growth inhibition of flag leaves and spikes. TaGAMYB3 functions as a transcriptional activator of downstream genes, including TaPSKR1, TaXTH23, TaMADS5 and TaMADS51, by binding to their promoters. Furthermore, TaGAMYB3 physically interacts with TaBA1, an important regulator of spike development, to additively activate the transcription of downstream genes such as TaMADS5. Our findings provide insight into how the miR319/TaGAMYB3 module regulates plant architecture and improves grain yield in common wheat.

  • 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：宁夏农林科学院

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