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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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Official URL: http://dx.doi.org/10.1016/j.mimet.2008.06.006

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

Dates:

Date	Event
17 June 2008	Published

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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