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. 2012 Sep 4;7(9):e44253. doi: 10.1371/journal.pone.0044253

Figure 3. D. melanogaster and D. simulans display differences in TE chromatin state and expression of epigenetic writers.

Figure 3

A. Fold enrichment of H3K9me2 (left panel) and H3K27me3 (right panel) for the four transposable elements studied are depicted per species (mean ± SE). Roo copies show a significant lack of H3K9me2 (Mann Whitney test, p-value <0.05). Histone fold enrichment of each TE family was compared between species and the results of the Mann Whitney test are shown (p-value * <0.05 and Δ <0.1). B. Quantification of RNA steady-state levels of the methyltransferases responsible for H3K9me2 and H3K27me3 deposition (mean ± SE). D. melanogaster (blue), D. simulans (red). Mann Whitney P-values between species are shown with asterisks (p-value ** <0.001).