GmSTF accumulation mediated by DELLA protein GmRGAs contributes to coordinating light and gibberellin signaling to reduce plant height in soybean

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：Plant height influences plant architecture,lodging resistance,and yield performance.It is modulated by gibberellic acid(GA)metabolism and signaling.DELLA proteins,acting as central repressors of GA signal-ing,integrate various environmental and hormonal signals to regulate plant growth and development in Arabidopsis.We examined the role of two DELLA proteins,GmRGAa and GmRGAb,in soybean plant height control.Knockout of these proteins led to longer internodes and increased plant height,primarily by increasing cell elongation.GmRGAs functioned under different light conditions,including red,blue,and far-red light,to repress plant height.Interaction studies revealed that GmRGAs interacted with the blue light receptor GmCRY1b.Consistent with this,GmCRY1b partially regulated plant height via GmRGAs.Additionally,DELLA proteins were found to stabilize the protein GmSTF1/2,a key positive reg-ulator of photomorphogenesis.This stabilization led to increased transcription of GmGA2ox-7b and sub-sequent reduction in plant height.This study enhances our understanding of DELLA-mediated plant height control,offering Gmrgaab mutants for soybean structure and yield optimization.

外文关键词：

DELLA proteinGmRGAsGmSTFsPlant heightSoybean

作者：

Zhuang Li、Qichao Tu、Xiangguang Lyu、Qican Cheng、Ronghuan Ji、Chao Qin、Jun Liu、Bin Liu、Hongyu Li、Tao Zhao

展开 >

作者单位：

State Key Laboratory of Crop Gene Resources and Breeding,Institute of Crop Sciences,Chinese Academy of Agricultural Sciences,Beijing 100081,China

基金：

Sci-Tech Innovation(2030)Agricultural Science and Technology Innova-tion Program of CAAS国家自然科学基金Central Public-interest Scientific Insti-tution Basal Research Fund

项目编号：

2022ZD0400701-231871705

出版年：

2024

DOI：

10.1016/j.cj.2024.01.013

作物学报(英文版)

CSTPCD

ISSN：

年,卷(期)：2024.12(2)

参考文献量48