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Clinical and Diagnostic Laboratory Immunology, January 2001, p. 93-104, Vol. 8, No. 1
Institute of Virology1
and Institute for Fish and Bee
Diseases, University of Veterinary
Sciences, A-1210 Vienna8, and Institute for Apiculture, Federal Office
and Research Centre of Agriculture, A-1226
Vienna,7 Austria; Department of Bee
Pathology, Institute of Animal Health, D-79108 Freiburg,
Germany2; School of Biological
Sciences, University of Surrey, Guilford, Surrey GU2 7XH, United
Kingdom3; Department of
Microbiology, University of the Western Cape, 7535 Bellville, South
Africa4; Institute for Apiculture,
Federal Office and Research Centre of Agriculture, A-3293 Lunz,
Austria5; and Institute for
Apiculture, University of Bonn, D-53127 Bonn, Germany6
Received 13 July 2000/Returned for modification 17 October
2000/Accepted 27 October 2000
Sacbrood virus (SBV) infects larvae of the honeybee
(Apis mellifera), resulting in failure to pupate and death.
Until now, identification of viruses in honeybee infections has been
based on traditional methods such as electron microscopy,
immunodiffusion, and enzyme-linked immunosorbent assay. Culture cannot
be used because no honeybee cell lines are available. These
techniques are low in sensitivity and specificity. However, the
complete nucleotide sequence of SBV has recently been determined, and
with these data, we now report a reverse transcription-PCR (RT-PCR) test for the direct, rapid, and sensitive detection of these
viruses. RT-PCR was used to target five different areas of the
SBV genome using infected honeybees and larvae originating from
geographically distinct regions. The RT-PCR assay proved to be a rapid,
specific, and sensitive diagnostic tool for the direct detection of SBV nucleic acid in samples of infected honeybees and brood regardless of
geographic origin. The amplification products were sequenced, and
phylogenetic analysis suggested the existence of at least three
distinct genotypes of SBV.
1071-412X/01/$04.00+0 DOI: 10.1128/CDLI.8.1.93-104.2001
Copyright © 2001, American Society for Microbiology. All rights reserved.
Sacbrood Virus of the Honeybee (Apis
mellifera): Rapid Identification and Phylogenetic Analysis Using
Reverse Transcription-PCR
*
Corresponding author. Mailing address: Institute of
Virology, University of Veterinary Sciences, Veterinärplatz 1, A-1210 Vienna, Austria. Phone: 43 1 25077 2304. Fax: 43 1 25077 2390. E-mail: Norbert.Nowotny{at}vu-wien.ac.at.
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