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MicroRNA159 Can Act as a Switch or Tuning MicroRNA Independently of Its Abundance in Arabidopsis

Alonso-Peral, Maria M.; Sun, Cheng; Millar, Anthony A.

Description

The efficacy of gene silencing by plant microRNAs (miRNAs) is generally assumed to be predominantly determined by their abundance. In Arabidopsis the highly abundant miRNA, miR159, acts as a molecular "switch" in vegetative tissues completely silencing the expression of two GAMYB-like genes, MYB33 and MYB65. Here, we show that miR159 has a diminished silencing efficacy in the seed. Using reporter gene constructs, we determined that MIR159 and MYB33 are co-transcribed in the aleurone and embryo...[Show more]

CollectionsANU Research Publications
Date published: 2012-04-12
Type: Journal article
URI: http://hdl.handle.net/1885/16801
Source: PLoS ONE
DOI: 10.1371/journal.pone.0034751

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