Figure 1
From: A phylogenetic examination of the primary anthocyanin production pathway of the Plantae

Anthocyanin biosynthetic pathways for the three major pigment types. CS = Chalcone synthase, CHI = Chalcone isomerase, FHT = Flavanone 3-hydroxylase, DFR = Dihydroflavonol 4-reductase, ANS = Anthocyanidin synthase, F3GT = Flavonoid 3′-glucosyltransferase, F3′H = Flavonoid 3′-hydroxylase, F3′5′H = Flavonoid 3′5′-hydroxylase.