B. Dyson

Engineering of the rose flavonoid biosynthetic pathway successfully generated blue-hued flowers accumulating delphinidin.

Yoshikazu Tanaka, T. Ashikari, K. Yonekura-Sakakibara, 2007, Plant & cell physiology.

Flower Color Modification by Engineering of the Flavonoid Biosynthetic Pathway: Practical Perspectives

Yoshikazu Tanaka, M. Senior, F. Brugliera, 2010, Bioscience, biotechnology, and biochemistry.