Fig. 8.

Several IAA pathway genes were significant down-regulated in SSI2 mutant. a The description of agriGO analysis about the hormones-related GO enrichment. The numbers marked in parentheses were P values. The grid marked with deeper color-coded means higher significantly enrichment. b Quantitative RT-PCR analysis of ten IAA pathway genes to validate the RNA-seq data of down-regulated genes. The data are shown as means ± SD from three biological replicates. The experiments were repeated two times. Significance was determined by Student’s t test. *Indicates significant differences at P < 0.05, ** Indicates significant differences at P < 0.01