Examples of H3K27me3 islands etching 24 h and 10 days after priming. H3K27me3 profiles of primed and non-primed (control) root samples 24 h and 10 days after priming (screenshots of IGB display). Positions and lengths of islands identified by SICER are indicated with bars in the middle section. Note that in both example regions a long H3K27me3 island in the control samples is fractionated into a shorter island in the primed samples. This effect is still apparent after a 10-day growth period in control conditions.
Sani et al. Genome Biology 2013 14:R59 doi:10.1186/gb-2013-14-6-r59