Identification of Potential Cytokinin Responsive Key Genes in Rice Treated With Trans-Zeatin Through Systems Biology...

Area of Science:

• Plant Science
• Genomics
• Biotechnology

Background:

• Rice is a vital global food source facing production challenges due to climate change.
• Plant growth hormones, like cytokinin, are crucial for plant development, immunity, and defense.
• Trans-zeatin, an active cytokinin form, regulates plant growth via a two-component phosphorelay system.

Purpose of the Study:

• To understand the molecular mechanisms underlying trans-zeatin signaling in rice.
• To identify key genes and functional modules involved in the cytokinin pathway using systems biology.
• To provide a foundation for developing stress-resilient rice cultivars.

Main Methods:

• Weighted gene co-expression network analysis (WGCNA) was employed to analyze gene expression data.
• Identification of functional modules and hub genes associated with the cytokinin pathway.
• Statistical validation of identified genes against quantitative trait loci (QTLs) and functional annotation using DAVID server.

Main Results:

• Nine distinct functional modules and associated hub genes in the cytokinin signaling pathway were identified.
• The biological significance of these hub genes was confirmed through statistical association with validated QTLs.
• Key genes regulating cytokinin responses in rice were successfully pinpointed.

Conclusions:

• The study elucidates critical genetic components of the cytokinin pathway in rice.
• Identified genes offer targets for marker-assisted selection in breeding programs.
• Findings support the development of climate-resilient rice cultivars for enhanced food security.