Figure 5

EPIG clustering of co-expressed genes. The average log₂ fold-change of genes in the pattern for each experimental replicate and treatment is represented by the individual data points in each box. Red, green, blue, and black data points are untreated, sub-, low-, and high-toxicity exposures, respectively. Data points to the left of the dotted line (closed circles) are HgCl₂-responsive genes and those to the right (open circles) are MeHgCl-responsive. The value in the upper left indicates the identification number of the EPIG pattern. The value in the lower left hand indicates the number of genes in the specific pattern. The identity of the genes in each pattern can be found in Additional file 3: Table S5.