Fig. 5From: Diel rewiring and positive selection of ancient plant proteins enabled evolution of CAM photosynthesis in AgaveDiel gene expression pattern of circadian system genes in Agave americana and Arabidopsis thaliana. In the circular heatmaps, the outer and inner rings represent Agave americana and Arabidopsis thaliana, respectively. The black and white half-circles inside the circular heatmaps indicate night-time and day-time, respectively. Full gene names are listed in Additional file 18: Table S13Back to article page