Figure 5.

Enrichment of H3K4me3, H3K9/14ac, and H3K27ac at the phyA locus in the phyB Mutant Exposed to R.

(A) Relative phyA expression level in Col-0 and phyB mutant under FR or R. Four-day-old etiolated Arabidopsis seedlings were treated with FR (5 μmol/m²/s) or R (20 μmol/m²/s) as indicated (3, 9, and 24 h). Expression levels were determined by quantitative RT-PCR with a phyA-specific primer set.

(B) Relative levels of active histone H3 modifications (K4me3, K9/14ac, and K27ac) of phyA (region 3) in Col-0 and the phyB mutant after R (20 μmol/m²/s) treatment for 24 h.

Error bars indicate sd (n = 3).

[See online article for color version of this figure.]