Alternative splicing has a crucial role in the regulation of gene functions and enhancement of the proteome diversity in plants. In plants especially Arabidopsis, introns are present in most of the genes. A significant number of the intron-split genes concerned with the regulation of different biological events counting the circadian clock are alternatively spliced. In this current review, our main aim is to study the participation of alternative splicing in the circadian clock regulation. | Circadian clock regulation through Pre-mRNA splicing A review