Uniparental expression of PolIV-dependent siRNAs in developing endosperm of Arabidopsis

Rebecca A. Mosher, Charles W. Melnyk, Krystyna A. Kelly, Ruth M. Dunn, David J. Studholme and David C. Baulcombe ()
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Rebecca A. Mosher: University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
Charles W. Melnyk: University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
Krystyna A. Kelly: University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
Ruth M. Dunn: University of Cambridge, Downing Street, Cambridge CB2 3EA, UK
David J. Studholme: The Sainsbury Laboratory, Colney Lane, Norwich NR4 7UH, UK
David C. Baulcombe: University of Cambridge, Downing Street, Cambridge CB2 3EA, UK

Nature, 2009, vol. 460, issue 7252, 283-286

Abstract: Genomic imprinting and RNA silencing linked in plants Small interfering (si) RNAs that are associated with gene silencing have been discovered in most eukaryotes. Here, in Arabidopsis, siRNAs are shown to be uniparentally expressed from the maternal genome, and their maximal expression is in the young developing seed. This unusual pattern of expression provides evidence for a link between genomic imprinting and RNA silencing in plants.

Date: 2009
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DOI: 10.1038/nature08084

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