How Plants Forget (IMAGE)

Gregor Mendel Institute of Molecular Plant Biology

How Plants Forget

Caption

Sperm cells within pollen lose the H3K27me3 epigenetic mark. After microspore development, H3.1 is replaced by H3.10 which is resistant to H3K27 methylation. Together with the loss of PRC2 methylation "writers" and activation of JMJ methylation "erasers", this ensures that H3K27me3 is reset in sperm for the next generation.

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Michael Borg

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