Schizanthus grahamii and Schizanthus hookeri. Is there any relationship between their anthocyanin compositions and their different pollination syndromes?

► Total anthocyanin content is much higher in Schizanthus grahamii than in Schizanthus hookeri. ► Delphinidin 3-O-glucoside is the major anthocyanin in S. grahamii red flowers (hummingbird). ► Petanin is the major anthocyanin in S. hookeri bluish-pink flowers (bee). ► Common pigments in both species can be indicative of a common ancestor. ► Synthesis of simpler red pigments by S. grahamii is related to specialisation.