Analysis of histone methylation in the <i>clf</i> mutant by immunoblotting.

<p>(A) Analysis of H3K27me3 in Col and <i>clf</i> seedlings. Histone extracts from Col and <i>clf</i> were blotted with anti-trimethyl H3K27 (top panel) and anti-H3 (bottom panel). (B) Analysis of H3K27me2 in Col and <i>clf</i> seedlings. Histone extracts were blotted with anti-dimethyl H3K27 (top panel). (C) Analysis of H3K4me3 in Col and <i>clf</i> seedlings. Histone extracts were blotted with anti-trimethyl H3K4 (top panel).</p>