Accepted_test

Plant circadian rhythms reflect daily fluctuations in gene expression and protein synthesis, regulating various biological processes in plants. Despite identifying key components of circadian clock of common wheat, limited data exists on the daily expression and interactions of these genes. To address this gap, RNA sequencing was conducted to analyze the daily transcriptome of common wheat. This revealed genes exhibiting daily patterns of expression, influencing diverse metabolic pathways such as responses to stimuli, nutrient transport, photoperiodism, and RNA synthesis regulation. Five distinct expression patterns were identified, each associated with specific gene sets and metabolic pathways. Wheat homologs of the genes related to circadian clock in Arabidopsis were identified. Most of them were represented by three homoeologous genes expressed uniformly. Although some genes displayed shifted expression peaks, overall, wheat circadian genes exhibited similar patterns to their Arabidopsis orthologs, suggesting a conserved functional role across species.