Fig. 2
From: Gene-expression profiles in lung adenocarcinomas related to chronic wood smoke or tobacco exposure
Volcano Plot showing gene differential expression of patients with adenocarcinoma and history of wood smoke exposure vs. tobacco smoke exposure. Fold changes are represented in log2 base along the x-axis and the level of trust in the form of –log10 (p < 0.001) along the y-axis. The cut off value of 10−2 used is 2 on the y-axis (top right and left corners). Red and green dots represent up and down-regulated genes respectively: Fold change (≥1.2) and significance level (p < 0.001). Other colors: yellow indicates significant but low fold change, magenta shows not statistically robust changes and blue shows low fold change with low statistical significance