Figure 4

The differential gene expression between A/MSG and PSG. The volcano plot shows the magnitude of differential expression between A/MSG and PSG. Each dot represents one gene that had detectable expression in both tissues. The horizontal line marks the threshold (P < 0.01) for defining a gene as up-regulated in PSG (blue) or A/MSG (red), with a combined change > 2-fold. The vertical dashed lines represent two fold differences in expression.