Fig. 4

Anthocyanin biosynthetic pathway of C. australasica reproduced with permission of Kanehisa Laboratories [48]. The main components in anthocyanin pathway are shown with red asterisks. Phenylalanine undergoes catalysis via a series of steps producing Cinnamic acid, Coumaric acid, 4-Coumaroyl-CoA, Naringenin chalcone, Naringenin, Dihydrokaempferol, Dihydroquercetin, Dihydromyricetin, Leucoanthocyanidins, Anthocyanidins, and Anthocyanins. The major types of anthocyanins identified from the annotation of C. australasica by KEGG analysis were pelargonidin, pelargonidin-3-sambubioside, cyanidin, cyanidin 3-glucoside, cyanidin 5-glucoside, cyanidin 3,5-diglucoside, cyanidin-3-sambubioside, delphinidin, delphidin-3-sambubioside, delphinidin 3-glucoside. The pathways were retrieved from KEGG pathway analysis