Fig. 5
Expression of the genes involved in phenylalanine biosynthesis and flavonoid metabolism. PAL, phenylalanine ammonia-lyase; C4H, trans-cinnamic acid 4-monoxygenase; 4CL, 4-coumarate-CoA ligase; CHS, chalcone synthase; LAR, leucoanthocyanidin reductase; FLS, flavonol synthase; F3′5'H, flavonoid 3',5'-hydroxylase; COGT1, scopoletin glucosyl transferase; POD, peroxidase; HCT, hydroxy cinnamoyl transferase; All the genes showing Log2|FC| (≤ − 0.5 and ≥ 0.5) in expression were analyzed. Brown and green squares represent up- and down-regulated genes respectively