Journal Article

Transcriptome Analyses Revealed Diverse Expression Changes in <i>ago1</i> and <i>hyl1</i> Arabidopsis Mutants

Yukio Kurihara, Eli Kaminuma, Akihiro Matsui, Makiko Kawashima, Maho Tanaka, Taeko Morosawa, Junko Ishida, Yoshiki Mochizuki, Kazuo Shinozaki, Tetsuro Toyoda and Motoaki Seki

in Plant and Cell Physiology

Published on behalf of Japanese Society of Plant Physiologists

Volume 50, issue 9, pages 1715-1720
Published in print September 2009 | ISSN: 0032-0781
Published online July 2009 | e-ISSN: 1471-9053 | DOI: http://dx.doi.org/10.1093/pcp/pcp109
Transcriptome Analyses Revealed Diverse Expression Changes in ago1 and hyl1 Arabidopsis Mutants

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  • Biochemistry
  • Molecular and Cell Biology
  • Plant Sciences and Forestry

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MicroRNAs (miRNAs) are 20–24 nucleotide endogenous regulatory molecules conserved in higher eukaryotes. In Arabidopsis, miRNAs are produced through step-wise cleavages of primary miRNA precursors (pri-miRNAs) by DICER-LIKE1 (DCL1). This cleavage step is also supported by a double-stranded RNA-binding protein, HYPONASTIC LEAVES1 (HYL1). In many cases, mature miRNA is predominantly incorporated into an endonuclease, ARGONAUTE1 (AGO1), which degrades miRNA-targeted mRNAs. Here, we examined and revealed whole genome transcriptomes in ago1-25 and hyl1-2 mutants using tiling arrays. The data in this paper are valuable for understanding the relationship between the miRNA pathway and its effect on transcriptomes.

Keywords: AGO1; Arabidopsis; HYL1; MicroRNA; Tiling array

Journal Article.  2541 words.  Illustrated.

Subjects: Biochemistry ; Molecular and Cell Biology ; Plant Sciences and Forestry

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