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Genome-wide circadian gating of a cold temperature response in bread wheat
Calum A Graham1,2, Pirita Paajanen1, Keith J Edwards2
1Department of Cell and Developmental Biology, John Innes Centre, Norwich Research Park, Norwich, United Kingdom.
Plos Genetics
|September 18, 2023
Summary
Plants use internal circadian clocks to control responses to environmental changes, like cold. This study reveals genome-wide circadian gating of cold responses in wheat, crucial for crop productivity and potentially linked to wheat
Area of Science:
- Plant biology
- Chronobiology
- Genomics
Background:
- Circadian rhythms govern daily biological processes in organisms.
- Circadian gating regulates plant responses to environmental cues based on time of day.
- This temporal regulation is vital for plant productivity and seasonal reproduction.
Purpose of the Study:
- To investigate genome-wide circadian gating of cold temperature responses in plants.
- To determine the importance of circadian gating in the gene expression programs of bread wheat.
- To explore the distribution of circadian gating across wheat subgenomes.
Main Methods:
- Utilizing bread wheat as an experimental model.
- Analyzing genome-wide gene expression patterns.
- Investigating the temporal regulation of environmental responses.
Main Results:
- Demonstrated genome-wide circadian gating of responses to cold temperatures in wheat.
- Established the crucial role of circadian gating in wheat's environmental response gene expression.
- Observed uneven distribution of cold response circadian gating across wheat subgenomes.
Conclusions:
- Circadian gating is a fundamental mechanism controlling plant responses to cold.
- This gating is essential for the environmental adaptability and productivity of major crops like wheat.
- Subgenome-specific patterns in circadian gating may reflect wheat's evolutionary history.
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