数字农科院2.0

Osmph1 Regulates Plant Height And I.mproves Grain Yield In R ice

文献类型： 外文期刊

作者： 张永兴;于春生;;刘军;;刘斌;;赵涛;;李宏宇

作者机构：

期刊名称： PLoS One

ISSN： 1932-6203

年卷期： 2017 年 12 卷 7 期

页码：

收录情况： JCR（2021版）

摘要： Plant height is a major trait affecting yield potential in rice. Using a large-scale hybrid transcription factor approach, we identified the novel MYB-like transcription factor OsMPH1 (MYB-like gene of Plant Height 1), which is involved in the regulation of plant height in rice. Overexpression of OsMPH1 leads to increases of plant height and grain yield in rice, while knockdown of OsMPH1 leads to the opposite phenotypes. Microscopy of longitudinal stem sections indicated that a change in internode cell length resulted in the change in plant height. RNA sequencing (RNA-seq) analysis of transgenic rice lines showed that multiple genes related to cell elongation and cell wall synthesis, which are associated with plant height and yield phenotypes, exhibited an altered expression profile. These results imply that OsMPH1 might be involved in specific recognition and signal transduction processes related to plant height and yield formation, providing further insights into the mechanisms underlying the regulation of plant height and providing a candidate gene for the efficient improvement of rice yield.

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