Fig. 7

SiWRKY gene expression in sesame roots treated for 11 d with drought stress compared with untreated controls. Transcripts abundance was quantified using qRT-PCR and expression levels were normalized using sesame β-actin (SIN_1009011) as a reference gene. The mean expression levels from three independent biological replicates were analyzed for significance using t-tests (p < 0.01). The histograms represent the relative expression levels and rates of gene induction (stress/control). An asterisk (*) indicates a significant (2-fold) increase in gene expression in plants treated with drought stress compared with untreated controls