Atypical DNA methylation of genes encoding cysteine-rich peptides in Arabidopsis thaliana
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ABSTRACT: In plants, transposons and non-protein-coding repeats are epigenetically silenced by CG and non-CG methylation. This pattern of methylation is mediated in part by small RNAs and two specialized RNA polymerases, Pol IV and Pol V, in a process called RNA-directed DNA methylation. By contrast, many protein-coding genes transcribed by Pol II contain in their gene bodies exclusively CG methylation that is independent of small RNAs and Pol IV/Pol V activities. It is unclear how the different methylation machineries distinguish between transposons and genes. Here we report on a group of atypical genes that display in their coding region a transposon-like methylation pattern, which is associated with gene silencing in sporophytic tissues.
ORGANISM(S): Arabidopsis thaliana
PROVIDER: GSE34207 | GEO | 2012/11/22
SECONDARY ACCESSION(S): PRJNA149671
REPOSITORIES: GEO
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