Fig. 6
The expression levels of CpMAPKs in fruit flesh in response to ethephon (ETH) and 1-MCP treatment. The papaya flesh tissues were sampled at 0, 3, 6 and 9 d after being subjected to ethephon and 1-MCP treatment. The relative expression levels were determined by qRT-PCR, and calculated by ΔΔCt method. The red asterisks indicate significant differences between CK and 1-MCP treatments, and black asterisks indicate significant differences between CK and ethephon treatments by Student’s t-test: * P < 0.05; ** P < 0.01, respectively