Figure 4
d N /d S ratios of selection pressure across the amino acid sequences of exemplary orthologous groups of CEP genes. dN/dS means (black line) and 95% HPD intervals (blue ribbon) were calculated for orthologous groups of CEP genes. Orthologous groups were chosen from a diverse range of angiosperm families: group 3 from Rosaceae (A), group 4 from Fabaceae (B), group 8 from Solanaceae (C), group 10 from the sister families Brassicaceae and Cleomaceae (D) and group 28 from Poaceae (E). The entire coding region was analyzed, including the NSS (light red), variable region (grey), CEP domain (blue) and C-terminal extension (green). Significantly constrained residues (upper HPD limit < 1) are highlighted in bold. Conserved motifs within the variable region and related motifs in the CEP domain are underlined.