Figure 6.

Changes of Histone Modifications on phyA in hda19/hd1 and taf1 Compared with the Wild Type (Ws).

(A) Relative phyA expression level in Ws, hda19/hd1, and taf1 under the D/L transition. Two-week-old Arabidopsis plants were grown under short-day conditions (8 h of L/16 h of D), harvested at the end of the D period (0), and sampled at 4-h intervals (4 and 8) under L conditions. The expression level of phyA was determined by quantitative RT-PCR.

(B) and (C) Relative levels of histone H3 modifications, K9/14ac (B) and K4me3 (C), of phyA (region 3) in Ws, hda19/hd1, and taf1 under the D/L transition.

(D) Relative phyA expression level in Ws, hda19/hd1, and taf1 during deetiolation. Four-day-old etiolated Arabidopsis seedlings (D) were treated with white light as indicated (1, 6, and 24 h). The expression level of phyA was determined by quantitative RT-PCR.

(E) and (F) Relative levels of histone H3 modifications, K9/14ac (E) and K4me3 (F), of phyA (region 3) in Ws, hda19/hd1, and taf1 during deetiolation.

Error bars indicate sd (n = 3).