Fig. 4: differential expression of transcripts coding for surface proteins identified during prolonged starvation of Trypanosoma cruzi epimastigote culture. The expression profile of genes of the indicated families of surface protein is shown. During the prolonged starvation of T. cruzi epimastigote culture time points at day 7, corresponding to the exponential phase, day 14, early stationary phase, day 21, intermediate stationary phase and day 28, the final of the stationary phase (D7, D14, D21 and D28 respectively) were selected for analysis. Light grey bars represent the expression at D14 relative to D7; grey bars the expression at D21 relative to D7 and black bars the expression at D28 relative to D7. Vertical asterisks over each bar indicate adjusted significance: * p < 0.05, ** p < 0.01, *** p < 0.001. Red and blue asterisks account for ERT and LRT, respectively. The arrow (↑) indicates the bar was truncated at FC = 7.