Fig. 1

MdPIP1;3 expression in drought treatment and during apple fruit development. a MdPIP1;3 expression in drought treatment at different time points. The apple seedlings were subjected to drought treatment (nutrient solution containing 20% PEG) and sampled at 0, 4, 8, 12, 24 h, 3d and 5d, respectively. b MdPIP1;3 expression during apple fruit development. The apple fruits were sampled at different stages of fruit development from June 4 to October 15. Gene expression of MdPIP1;3 was detected by semi-quantitive RT-PCR and MdActin was as control. The semi-quantitive RT-PCR experiments were repeated three times