Figure 1.

Distribution of P450 families across plant phylogeny. A total of 1,098 named plant P450s were sorted by family and taxonomic position in the phylogeny of plants. Each dot may represent many genes, as in the rice CYP71s in the monocot branch (117 named P450s). P450 families are grouped in the 10 plant P450 clans. Vertical lines are placed to help visualize the P450 family position. Arabidopsis is in the Brassicales branch. Only rice and Arabidopsis had complete genomes available at the time of this compilation.