Figure 1. Rapid effect of pollination on gene expression related to phytohormone biosynthesis during berry formation. Transcript abundance of VvNCED1, VvGA20ox and VvIPT1 in pollinated (P) and unpollinated (NP) pistils, measured at 4 h post-pollination (4 HPP) and 76 HPP, relative to VvUBI1 gene expression. Values are the mean of 3 biological and three technical replicates, and are relative to the emasculated not pollinated 4 HPP sample, which was set to 1.0 arbitrarily. Bars represent means ± STERR (n = 3). Asterisks indicate significant differences (*p ≤ 0.05; **p ≤ 0.01).