Gene synteny near the reg cluster and closely related regA-like genes (bold). Synteny of C. reinhardtii (red), G. pectorale (orange), Pan. morum (green), Pla. caudata (green), Y. unicocca (green), E. elegans UTEX 1212 (green), Ple. californica (blue), and V. carteri (black) is shown. All available data from Pan. morum, Pla. caudata, E. elegans UTEX 1212, and Ple. californica are shown, while representative genomic regions from C. reinhardtii, G. pectorale, Y. unicocca, and V. carteri are shown. Scaffold or chromosome numbers are indicated for C. reinhardtii, G. pectorale, Y. unicocca, and V. carteri. Putative reg cluster and RLS1/rlsD orthologs are connected with black lines, syntenic genes are connected with gray lines.