Figure 6.

Relative expression of the orchid DIV, RAD, and DRIF1 genes in lateral inner tepals (Te_inn) and lip of Orchis italica, Phalaenopsis equestris, and Phalaenopsis Joy Fairy Tale. The relative expression Rn (expressed as log₁₀ of the mean between technical duplicates of three biological replicates) is normalized with respect to 18S endogenous gene and outer tepal tissue. The bars represent SEM and the asterisks indicate significant difference in relative expression between lateral inner tepals and lip assessed by t test. Early and late indicate before and after anthesis stage, respectively.