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Quantifiable downregulation of endogenous genes in Agaricus bisporus mediated by expression of RNA hairpins
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Costa, Ana M. S. B., Thomas, D. John I., Eastwood, Daniel C., Cutler, Simon B., Bailey, Andy M., Foster, Gary D., Mills, P. R. and Challen, Michael P. (2009) Quantifiable downregulation of endogenous genes in Agaricus bisporus mediated by expression of RNA hairpins. Journal of Microbiology and Biotechnology, Vol.19 (No.3). pp. 271-276. doi:10.4014/jmb.0806.398
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Official URL: http://dx.doi.org/10.4014/jmb.0806.398
Abstract
Functional gene studies in the cultivated white button mushroom Agaricus bisporus have been constrained by the absence of effective gene-silencing tools. Using two endogenous genes from A. bisporus, we have tested the utility of dsRNA hairpin constructs to mediate downregulation of specific genes. Hairpin constructs for genes encoding orotidine 5'-monophosphate decarboxylase (URA3) and carboxin resistance (CBX) were introduced into A. bisporus using Agrobacterium-mediated transfection. Although predicted changes in phenotype were not observed in vitro, quantitative-PCR analyses indicated unambiguously that transcripts in several transformants were substantially reduced compared with the non-transformed controls. Interestingly, some hairpin transformants exhibited increased transcription of target genes. Our observations show that hairpin transgenic sequences can mediate downregulation of A. bisporus endogenous genes and that the technology has the potential to expedite functional genomics of the mushroom.
| Item Type: | Journal Article | ||||
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| Subjects: | T Technology > TP Chemical technology Q Science > QR Microbiology |
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| Divisions: | Faculty of Science > Life Sciences (2010- ) > Warwick HRI (2004-2010) | ||||
| Journal or Publication Title: | Journal of Microbiology and Biotechnology | ||||
| Publisher: | Han'gug Mi'saengmul Saengmyeong Gong Haghoe | ||||
| ISSN: | 1017-7825 | ||||
| Official Date: | March 2009 | ||||
| Dates: |
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| Volume: | Vol.19 | ||||
| Number: | No.3 | ||||
| Number of Pages: | 6 | ||||
| Page Range: | pp. 271-276 | ||||
| DOI: | 10.4014/jmb.0806.398 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Great Britain. Dept. for Environment, Food & Rural Affairs (DEFRA), Biotechnology and Biological Sciences Research Council (Great Britain) (BBSRC) |
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