Parent J. S. auteur aut IRD Cahn J. auteur aut IRD Herridge R. P. auteur aut IRD Grimanelli Daniel auteur aut IRD Martienssen R. A. auteur aut IRD text journalArticle eng text/pdf reformatted digital access Epigenetic reprogramming occurs during gametogenesis as well as during embryogenesis to reset the genome for early development. In flowering plants, many heterochromatic marks are maintained in sperm, but asymmetric DNA methylation is mostly lost. Asymmetric DNA methylation is dependent on small RNA but the re-establishment of silencing in embryo is not well understood. Here we demonstrate that small RNAs direct the histone H3 lysine 9 dimethylation during Arabidopsis thaliana embryonic development, together with asymmetric DNA methylation. This de novo silencing mechanism depends on the catalytic domain of SUVH9, a Su(Var)3-9 homolog thought to be catalytically inactive. specialized epigenetic reprogramming small RNA molecules DNA methylation plant embryogenesis histone methylation 076 020 35 11-12 841-846 2021 0890-9369 https://www.documentation.ird.fr/hor/fdi:010082042 10.1101/gad.343871.120 0890-9369 [F B010082042] https://www.documentation.ird.fr/hor/fdi:010082042 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2021-07/010082042.pdf IRD - Base Horizon / Pleins textes 2021-07-02 2025-02-24 fdi:010082042 fre