ORIGINAL RESEARCH article
Front. Plant Sci.
Sec. Plant Development and EvoDevo
Volume 16 - 2025 | doi: 10.3389/fpls.2025.1653514
Overexpression of OsMYBS1 affect leaf morphology, photosynthesis, and agronomic performance in rice
Provisionally accepted
- 1Hunan University of Humanities Science and Technology, Loudi, China
- 2State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
Select one of your emails
You have multiple emails registered with Frontiers:
Notify me on publication
Please enter your email address:
If you already have an account, please login
You don't have a Frontiers account ? You can register here
MYB transcription factors are critical regulators of plant growth, development, and responses to environmental stresses. However, the role of OsMYBS1, a MYB-related transcription factor in rice (Oryza sativa), in modulating plant morphology and agronomic traits remains largely unexplored. In this study, we investigated the biological function of OsMYBS1 by generating overexpression lines in rice. Our results demonstrated that overexpression of OsMYBS1 led to pronounced morphological and physiological alterations, including reduced plant height, broader and yellowing flag leaves, and decreased chlorophyll content. Agronomic evaluations further revealed that while tiller and panicle numbers increased in the overexpression lines. Transcriptomic analysis identified a substantial number of differentially expressed genes (DEGs) associated with chloroplast biogenesis, photosynthesis, and metabolic processes, indicating that OsMYBS1may influence chloroplast development and function. Collectively, these findings suggest that OsMYBS1 functions as a multifunctional regulator of plant growth and development, modulating leaf morphology and key agronomic traits. Our study provides a foundation for future investigations into the molecular mechanisms governed by OsMYBS1 and its potential utility in rice breeding to improve key agronomic traits.
Keywords: rice, MYB-related transcription factors, Leaf yellowing, plant growth and development, chloroplast
Received: 25 Jun 2025; Accepted: 03 Sep 2025.
Copyright: © 2025 Ma, Zhang, Liang, Huang, Liu, Li, Sun and Zhao. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence:
Yinhua Ma, Hunan University of Humanities Science and Technology, Loudi, China
Yan Zhao, State Key Laboratory of Hybrid Rice, Hunan Hybrid Rice Research Center, Changsha, China
Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.