Heat-Induced Release of Epigenetic Silencing Reveals the Concealed Role of an Imprinted Plant Gene

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In plants, expression of certain imprinted genes is restricted to embryo nourishing tissue, the endosperm. Since these genes are silenced by epigenetic mechanisms during vegetative growth, it has been assumed that they have no role in this phase of the plant life cycle. Here, we report on heat-mediated release of epigenetic silencing and ectopic activation of the Arabidopsis thaliana endosperm-imprinted gene SDC. The stress induced activation of SDC involves epigenetic regulation but not the canonical heat-shock perception and signaling, and it seems to be required for efficient growth recovery after the stress. Our results exemplify a potential concealed role of an imprinted gene in plant responses to environmental challenges.

Vyšlo v časopise: Heat-Induced Release of Epigenetic Silencing Reveals the Concealed Role of an Imprinted Plant Gene. PLoS Genet 10(11): e32767. doi:10.1371/journal.pgen.1004806
Kategorie: Research Article
prolekare.web.journal.doi_sk: https://doi.org/10.1371/journal.pgen.1004806

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