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Untargeted Liquid Chromatography-Mass Spectrometry-Based Metabolomics Analysis of Wheat Grain
Published on: March 13, 2020
A proteomic study of spike development inhibition in bread wheat
Yong-Sheng Zheng1, Jun-Xian Guo, Jin-Peng Zhang
1National Key Facilities for Crop Gene Resources and Genetic Improvement, Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing, P. R. China; Crop Research Institute, Shandong Academy of Agricultural Sciences, Jinan, P. R. China.
Proteomics
|July 12, 2013
Summary
Wheat spike development is crucial for crop survival. A proteomic study reveals that the mutant 5660M shows inhibited spike development, linked to downregulated autonomous pathway genes like FVE.
Area of Science:
- Plant biology
- Proteomics
- Molecular genetics
Background:
- Wheat spike development is critical for propagation and survival.
- Understanding developmental inhibition is key to improving wheat yield.
Purpose of the Study:
- To investigate the proteomic changes in a bread wheat mutant (5660M) with inhibited spike development.
- To identify key proteins and pathways involved in this developmental defect.
Main Methods:
- Proteomic analysis using MS/MS and database searching to identify differentially expressed proteins.
- Quantitative RT-PCR to validate gene expression levels.
Main Results:
- 121 differentially expressed proteins were identified, associated with cold stress, protein folding, cell cycle, ROS scavenging, and the autonomous pathway.
- Cold-responsive proteins were upregulated, while the autonomous pathway protein FVE was significantly downregulated in the mutant.
- Downregulation of FVE and other autonomous pathway genes suggests a failure in floral transition.
Conclusions:
- The autonomous pathway, particularly FVE, plays a crucial role in wheat spike development and floral transition.
- The 5660M mutant's phenotype is linked to impaired floral transition due to genetic factors.
- Findings provide a theoretical basis for studying wheat floral development and yield formation.
