Figure 4.

Mirror plots of differentially accumulated features (DAFs). DAFs (FDR < 0.01) in polar (A) and non-polar (B) extracts are shown for leaf (top) and pitcher (bottom). Circle size depicts the absolute value of the log₂ of the average fold change, on the top if it is over-accumulated in leaf, and on the bottom otherwise. Color and y-axis value depict the m/z value of the feature, with blue being low- (100) and red high- (1000) m/z features; the further away from the origin, the higher the m/z, as indicated by the y-axis. The superimposed, raw base-peak chromatograms (BPC) of all runs are shown in the background, colored accordingly: green, all leaf BPCs; orange, all pitcher BPCs.