Additional file 20.

Figure S18. Genes that are unchanged in their expression following PB exposure do not correlate to changes in both DNA and histone modifications. Scatter graph plots display the average changes in epigenetic marks (5hmC, 5mC, H3K4me2, H3K27me3 and H3K36me3) against fold change in expression for 30 genes unchanged in their expression state following 28-day PB treatment. Trend lines are displayed in red with associated Pearson correlation ('cor') and P-values. These findings contrast those observed over 30 PB-induced genes (Figure 3b).

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Thomson et al. Genome Biology 2012 13:R93   doi:10.1186/gb-2012-13-10-r93