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Oligonucleotide sequences forming short self-complimentary hairpins can expedite the down-regulation of Coprinopsis cinerea genes

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Costa, Ana M.S.B., Mills, P. R. (Peter R.), Bailey, Andy M., Foster, Gary D. and Challen, Michael P.. (2008) Oligonucleotide sequences forming short self-complimentary hairpins can expedite the down-regulation of Coprinopsis cinerea genes. Journal of Microbiological Methods, Vol.75 (No.2). pp. 205-208. ISSN 0167-7012

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Abstract

Gene silencing in fungi is often induced by dsRNA hairpin forming constructs the preparation of which can require multiple cloning steps. To simplify gene silencing in the filamentous fungi we have evaluated a high throughput cloning method for target sequences using the homobasidiomycete Coprinopsis cinerea, the GFP reporter and a commercially available vector system. The pSUPER RNAi System™, which was developed for mammalian experiments, exploits the human H1 Polymerase III (Pol III) RNA gene promoter and expedites cloning/expression of specific user-defined oligonucleotide sequences to form short self-complimentary hairpins. Transformation of C. cinerea with pSUPER constructs harboring specific oligonucleotides (19 nt stem length) enabled recovery of transformants with reduced transcripts of the GFP transgene, that were less fluorescent in protein assays and microscopic phenotypes. This technological advance should expedite functional genomic studies in C. cinerea and has wider potential for utility in other homobasidiomycete and filamentous fungi.

Item Type: Journal Article
Subjects: S Agriculture > S Agriculture (General)
Divisions: Faculty of Science > Life Sciences (2010- ) > Warwick HRI (2004-2010)
Library of Congress Subject Headings (LCSH): Coprinopsis cinerea, Genes
Journal or Publication Title: Journal of Microbiological Methods
Publisher: Elsevier
ISSN: 0167-7012
Official Date: 17 June 2008
Volume: Vol.75
Number: No.2
Page Range: pp. 205-208
Identification Number: 10.1016/j.mimet.2008.06.006
Status: Peer Reviewed
Access rights to Published version: Open Access
Description:

Accepted manuscript.
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URI: http://wrap.warwick.ac.uk/id/eprint/191

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