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Curr Opin Plant Biol. 2005 Feb;8(1):38-44.

The developmental role of microRNA in plants.

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  • 1Institute of Molecular Plant Sciences, Edinburgh University, EH9 3JR, UK.


MicroRNAs (miRNAs) are single-stranded RNA molecules of around 22 nucleotides (nt) in length that are associated with the RNA-induced silencing complex (RISC). They play an important role in plant development, either by targeting mRNA for cleavage or by inhibiting translation. Over the past year, the list of known miRNAs, confirmed targets and developmental effects has expanded, as has the realization that they are conserved during evolution and that small RNAs can play a direct role in cell-cell signaling.

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