Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis.

Sexual-lineage-specific DNA methylation regulates meiosis in Arabidopsis.
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DOI:
10.1038/s41588-017-0008-5
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发表时间:
2018-01
期刊:
影响因子:
30.8
通讯作者:
Feng X
Feng X
中科院分区:
生物学1区
文献类型:
--
作者:
Walker J;Gao H;Zhang J;Aldridge B;Vickers M;Higgins JD;Feng X

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DNA methylation controls eukaryotic gene expression and is extensively reprogrammed to regulate animal development. However, whether developmental methylation reprogramming regulates genes during the diploid life cycle of flowering plants is presently unknown. Here we report a distinctive RNA-directed DNA methylation (RdDM) activity in the Arabidopsis thaliana male sexual lineage that regulates gene expression in meiocytes. Loss of sexual lineage-specific RdDM causes mis-splicing of the MPS1 gene, thereby disrupting meiosis. Our results establish a regulatory paradigm in which de novo methylation creates a cell-lineage-specific epigenetic signature that controls gene expression and contributes to cellular function in flowering plants.
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