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H3K9me2 histone modification on different regions of genes and TEs in P. tricornutum (A) and T. pseudonana (B). % IP indicates the enrichment. H4 P: promoter region of H4 histone gene. H4 B: body region of H4 histone gene. PHY P: promoter region of Dph gene. PHY B: body region of Dph. Mock values are indistinguishable from 0% in T. pseudonana.
