Reinforcement of silencing at transposons and highly repeated sequences requires the concerted action of two distinct RNA polymerases IV in <i>Arabidopsis</i>

Pontier, Dominique; Yahubyan, Galina; Vega, Danielle; Bulski, Agnès; Saez-Vasquez, Julio; Hakimi, Mohamed-Ali; Lerbs-Mache, Silva; Colot, Vincent; Lagrange, Thierry

doi:10.1101/gad.348405

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Reinforcement of silencing at transposons and highly repeated sequences requires the concerted action of two distinct RNA polymerases IV in Arabidopsis

Shared by NobleBlocks on Sep 1, 2005 • 12:00 AM UTC

Authors:

Dominique Pontier

Galina Yahubyan

Danielle Vega

Abstract

Recent genetic and biochemical studies have revealed the existence in plants of a fourth RNA polymerase, RNAPIV, which mediates siRNA accumulation and DNA methylation-dependent silencing of endogenous repeated sequences. Here, we show that Arabidopsis expresses, in fact, two evolutionarily related f...

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