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

• DOI: 10.1038/ncomms15122
• Publication Date: 2017-05-03T09:47:24Z
• Authors: Yoko Ikeda; Thierry Pélissier; Pierre Bourguet; Claude Becker; Marie-Noëlle Pouc...; Romain Pogorelcnik; Magdalena Weingar...; Detlef Weigel; Jean-Marc Deragon; Olivier Mathieu
• Keywords: Retrotransposon; Argonaute

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