Effects of plant decapitation on transcript levels of genes of GA biosynthesis and inactivation in unpollinated ovaries. A, SlCPS. B, SlGA20ox1, -2, -3, and -4. C, GA3ox1 and -2. D, SlGA2ox1, -2, -3, -4, and -5. Plant decapitation (Decap.) was carried out at day 0, and ovaries were collected 10 and 20 d later. −, Control; +, decapitated plants. The values are means of three biological replicates ± se.