Figure 4

Ethylene emission and expression of ethylene synthesis genes in OE and WT fruits. (A) Ethylene production of OE and WT fruits was detected at the indicated stage. (B) to (D) qRT-PCR analysis of genes related to ethylene synthesis. The expression of SlACS2 (B), SlACS4 (C) and SlACO1 (D) were detected between OE and WT fruits. (E) Changes in the phenotypes of OE-8 fruits after these fruits were treated with ethephon. MG, mature green; Br, breaker; B3, 3 d after breaker; B7, 7 d after breaker. Data are the means ± SD of three independent experiments. The asterisks indicate statistically significant differences between OE and WT fruits (*P < 0.05, **P < 0.01).