Fig. 1

Master circadian regulator gene expression throughout a diurnal cycle As a technical control, each member of known circadian master regulator gene families in the X. maculatus genome was tested for a cyclic gene expression pattern. These genes include a: The arntl gene family, b: The clock gene family, c: The per gene family, and d: The cry gene family. For each gene, relative expression values that were calculated by normalizing average absolute expression to daily expression average are plotted against zeitgeber times to from an organ-specific expression pattern. Expression patterns of 9 organs are plotted, with colors represented organ, and line types represented if a gene exhibit cyclic expression pattern. Gray and white areas represent dark and light phases respectively