Fig. 8

Expression analysis of GhPELs in the leaves under IAA treatment via qRT-PCR. 0 h, 3 h, 6 h, 12 h, 24 h and 48 h indicate hours after IAA treatment. a: Higher expression under IAA treatment than in CK at different IAA treatment times. b: Lower expression under IAA treatment than in CK at different IAA treatment times. c: No difference in expression between IAA treatment and CK at all IAA treatment times. Single, double and triple asterisks represent significant differences at the levels of 0.05, 0.01 and 0.001, respectively. The error bars show the standard deviation of three biological replicates