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Cooperative activity of VIN3 and PRC2 for the repression of FLC by vernalization.PRC2 mediates tri-methylation of H3K27 at FLC chromatin. H3K9me2 at FLC chromatin can be recognized by VIN3 and VIL1/VRN5 through their PHD motifs. VIN3 and VIL1/VRN5 physically associate with PRC2 and enhance the H3K27 methylation activity of PRC2.
