Figure 3
Differential expression of cell wall-related genes in adaxial versus abaxial petal blades. Five genes involved in cell wall modification/organization were chosen as representatives for further qPCR analysis: (A) a VANGUARD1 homolog 2, (B) a polygalacturonase, (C) a glycosyl hydrolase, (D) a pectate lyase and (E) an invertase/pectin methylesterase inhibitor. Stage A1 adaxial and abaxial petals from two biological replicates (replicate 1, replicate 2) were dissected into upper blade and lower claw and expression of the respective transcripts was compared only between adaxial and abaxial petal blades. aBpb, abaxial petal blade; aDpb, adaxial petal blade.