Fig. 5
The relative expression levels of plant hormone signal transduction-related DEGs and the contents of endogenous GAs, ABA, and IAA after GA3 and GA4 applications in P. suffruticosa cv ‘Luhehong’. a Heatmap of plant hormone signal transduction-related DEGs after GA3 and GA4 applications based on the RNAseq data. The colors from blue to red in heatmap represented the relative expression level of DEGs from low to high, and the blue-red colors corresponded to the 0–1 normalization (minimum–maximum normalization) values of log2(FPKM). b The relative expression levels of plant hormone signal transduction-related DEGs after GA3 and GA4 applications by qPCR. c The contents of endogenous GAs, ABA, and IAA after 48 h GA3 and GA4 feedings, and noted GA3-48 h, GA4-48 h. The mean ± SD in three biological replicates was shown. *, ** indicated significant differences of one-way ANOVA at p < 0.05, p < 0.01, respectively