首页|Development of a one-step RT-qPCR detection assay for the newly described citrus viroid VII

Development of a one-step RT-qPCR detection assay for the newly described citrus viroid VII

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? 2021 Elsevier B.V.An apscaviroid, tentatively named citrus viroid VII (CVd-VII), was recently discovered in citrus in Australia. A diagnostic assay using real-time reverse transcription polymerase chain reaction was developed and validated to detect the viroid in citrus plants. The assay showed a high level of sensitivity, reliably detecting 2000 plasmid copies per reaction, while down to 20 plasmid copies per reaction were occasionally detected. The assay showed high specificity, producing no false positives or cross-reactivity with a range of other citrus graft-transmissible pathogens, including viroids, viruses and bacteria. The real-time assay was also found to be more sensitive than the available end-point reverse transcription polymerase chain reaction assay by a factor of 100,000 and could be a useful tool for the rapid detection of CVd-VII in diagnostic and research environments.

CitrusDiagnosticsReal-time RT-qPCRTaqMan?Viroid

Geering A.D.W.、Holford P.、Vidalakis G.、Chambers G.A.、Donovan N.J.

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Queensland Alliance for Agriculture and Food Innovation The University of Queensland

Western Sydney University School of Science

Department of Microbiology and Plant Pathology University of California Riverside

NSW Department of Primary Industries Elizabeth Macarthur Agricultural Institute

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2022

Journal of Virological Methods

Journal of Virological Methods

SCI
ISSN:0166-0934
年,卷(期):2022.299
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