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Comparative transcriptome analysis reveals the core molecular network in pattern-triggered immunity in Sorghum
Yuanpeng Fang1, Bingqian Zhou1, Yushan Guo1
1Key Laboratory of Agricultural Microbiology, College of Agriculture, Guizhou University, Guiyang 550025, PR China.
International Journal of Biological Macromolecules
|May 19, 2023
Summary
Plant immunity relies on pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI). This study identified core PTI genes in sorghum, revealing PAMP type influences the network more than cultivar.
Area of Science:
- Plant Molecular Biology
- Plant Immunity
- Genomics
Background:
- Pathogen-associated molecular pattern (PAMP)-triggered immunity (PTI) is a crucial plant defense mechanism.
- Species-specific variations in PTI molecular mechanisms hinder the identification of core defense genes.
- Understanding PTI in C4 plants like Sorghum bicolor is vital for crop improvement.
Purpose of the Study:
- To investigate key factors influencing PTI in Sorghum bicolor.
- To identify the core molecular network underlying PTI in sorghum.
- To discover conserved genes involved in plant defense responses.
Main Methods:
- Comprehensive weighted gene co-expression network analysis (WGCNA) of sorghum transcriptome data.
- Temporal expression analysis under various PAMP treatments across different sorghum cultivars.
- Identification of differentially expressed genes (DEGs) and key network modules.
Main Results:
- PAMP type significantly influenced the PTI molecular network more than sorghum cultivar.
- Identified 30 stably downregulated and 158 stably upregulated genes post-PAMP treatment.
- Upregulation of potential pattern recognition receptor genes within 1 hour of PAMP treatment.
- Altered expression of resistance, signaling, salt-sensitive, heavy metal, and transporter genes.
Conclusions:
- Novel insights into the core gene network governing PTI in Sorghum bicolor.
- Findings facilitate the identification of essential genes for plant breeding.
- Potential application of identified genes for enhancing crop disease resistance.
Keywords:
Comparative transcriptomePathogen-associated molecular patternPattern recognition receptorPattern-triggered immunitySorghum bicolorWeighted gene co-expression network analysisMore Related Videos
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