Figure 3.

Effect of priming on genome-wide histone modification profiles. (A) Total number of continuous stretches of DNA ('islands') associated with specific histone modifications in roots of primed (PR; light colors) and non-primed (CR; dark colors) plants as determined by SICER [35]. (B) Total coverage of the genome with islands of specific histone modifications (in percent of whole genome sequence length). (C) Numbers of differences in genome-wide histone modification profiles identified by CHIPDIFF [36]. Numbers of differential sites that showed an increase of read count in the primed sample over the non-primed sample (PR/CR >1.2) are plotted to the right those that showed a decrease (CR/PR >1.2) are plotted to the left of the vertical bar. Data were obtained from pooled root material representing three independently treated plant batches of approximately 300 plants each.