Arabidopsis proteins with a transposon-related domain act in gene silencing

Yoko Ikeda; Thierry Pélissier; Pierre Bourguet; Claude Becker; Marie Noëlle Pouch-Pélissier; Romain Pogorelcnik; Magdalena Weingartner; Detlef Weigel; Jean Marc Deragon; Olivier Mathieu

doi:10.1038/ncomms15122

Arabidopsis proteins with a transposon-related domain act in gene silencing

Yoko Ikeda, Thierry Pélissier, Pierre Bourguet, Claude Becker, Marie Noëlle Pouch-Pélissier, Romain Pogorelcnik, Magdalena Weingartner, Detlef Weigel, Jean Marc Deragon, Olivier Mathieu

Institute of Plant Science and Resources

Research output: Contribution to journal › Article

9 Citations (Scopus)

Abstract

Transposable elements (TEs) are prevalent in most eukaryotes, and host genomes have devised silencing strategies to rein in TE activity. One of these, transcriptional silencing, is generally associated with DNA methylation and short interfering RNAs. Here we show that the Arabidopsis genes MAIL1 and MAIN define an alternative silencing pathway independent of DNA methylation and short interfering RNAs. Mutants for MAIL1 or MAIN exhibit release of silencing and appear to show impaired condensation of pericentromeric heterochromatin. Phylogenetic analysis suggests not only that MAIL1 and MAIN encode a retrotransposonrelated plant mobile domain, but also that host plant mobile domains were captured by DNA transposons during plant evolution. Our results reveal a role for Arabidopsis proteins with a transposon-related domain in gene silencing.

Original language	English
Article number	15122
Journal	Nature Communications
Volume	8
DOIs	https://doi.org/10.1038/ncomms15122
Publication status	Published - Jan 1 2017

ASJC Scopus subject areas

Chemistry(all)
Biochemistry, Genetics and Molecular Biology(all)
Physics and Astronomy(all)

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Arabidopsis proteins with a transposon-related domain act in gene silencing. / Ikeda, Yoko; Pélissier, Thierry; Bourguet, Pierre; Becker, Claude; Pouch-Pélissier, Marie Noëlle; Pogorelcnik, Romain; Weingartner, Magdalena; Weigel, Detlef; Deragon, Jean Marc; Mathieu, Olivier.

In: Nature Communications, Vol. 8, 15122, 01.01.2017.

Research output: Contribution to journal › Article

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