1. OsMPH1 regulates plant height and improves grain yield in rice
- Author
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Jun Liu, Jing Wang, Aobo Huang, Chunsheng Yu, Zhang Yongxing, Zhao Tao, Jianzhong Lin, Liu Bin, and Li Hongyu
- Subjects
0106 biological sciences ,0301 basic medicine ,Internodes ,lcsh:Medicine ,Gene Expression ,Genetically modified crops ,Plant Science ,01 natural sciences ,Genetically Modified Plants ,Biochemistry ,Arabidopsis thaliana ,lcsh:Science ,Phylogeny ,Plant stem ,Plant Proteins ,Gene knockdown ,Multidisciplinary ,Plant Stems ,Organic Compounds ,Genetically Modified Organisms ,Plant Anatomy ,food and beverages ,Plants ,Plants, Genetically Modified ,Cell biology ,Chemistry ,Phenotype ,Experimental Organism Systems ,RNA, Plant ,Physical Sciences ,RNA Interference ,Cellular Structures and Organelles ,Plant Cell Walls ,Cellular Types ,Genetic Engineering ,Research Article ,Biotechnology ,Arabidopsis Thaliana ,Plant Cell Biology ,Brassica ,Biology ,Research and Analysis Methods ,03 medical and health sciences ,Model Organisms ,Cell Walls ,Plant and Algal Models ,Plant Cells ,DNA-binding proteins ,Genetics ,Gene Regulation ,Amino Acid Sequence ,Grasses ,Gene ,Transcription factor ,Ethanol ,Sequence Analysis, RNA ,lcsh:R ,fungi ,Organic Chemistry ,Organisms ,Chemical Compounds ,Biology and Life Sciences ,Proteins ,Oryza ,Cell Biology ,Stem Anatomy ,biology.organism_classification ,Genetically modified rice ,Regulatory Proteins ,030104 developmental biology ,Agronomy ,Yield (chemistry) ,Alcohols ,lcsh:Q ,Plant Biotechnology ,Rice ,Sequence Alignment ,010606 plant biology & botany ,Transcription Factors - Abstract
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.
- Published
- 2017