Figure 3From: Gene expression changes induced by the tumorigenic pyrrolizidine alkaloid riddelliine in liver of Big Blue ratsVolcano plots (log2 fold change vs. -log2 P -value). A gene was identified as significantly changed if the fold change was greater than 2 (up or down) and the P-value was less than 0.01 in comparison to the control group (red symbols). Each group consisted of 5 or 6 replicates.Back to article page