Figure 1

Role category analysis of S. aureus USA300 and USA400 genes differentially expressed in vitro and in vivo growth. X- axis represents individual role categories based on gene function. Y-axis values indicate the mathematical difference in the number of genes significantly differentially expressed between USA300 and USA400 isolates during in vitro and in vivo growth. Positive values indicate a higher number of genes differentially expressed in the corresponding role category in USA300 isolate 923 compared to USA400 isolate 649. Negative values indicate a higher number of genes differentially expressed in the corresponding role category in USA400 isolate 649 compared to USA300 isolate 923. Blue bars indicate values from the 30 min in vitro time point; Yellow bars indicate 60 min in vitro time point; Green bars indicate 90 min in vitro time point; Maroon bars indicate 120 min in vitro time point; and Red bars indicate bars indicate the in vivo time point.