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A TaqMan probe based real-time PCR for the detection of Decapod iridescent virus 1
Liang Qiu1, Xing Chen1, Xiao-Meng Guo2
1Laboratory for Marine Fisheries Science and Food Production Processes, Pilot National Laboratory for Marine Science and Technology (Qingdao), Key Laboratory of Maricultural Organism Disease Control, Ministry of Agriculture and Rural Affairs, Qingdao Key Laboratory of Mariculture Epidemiology and Biosecurity, Yellow Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Qingdao 266071, China.
Abstract:
Decapod iridescent virus 1 (DIV1) was proven to be the aetiological agent of a disease causing mass die-offs of shrimp, prawn and crayfish. The specific purpose of this study was to develop a new sensitive real-time PCR method for the specific detection of DIV1. A pair of primers that amplify a 142 bp fragment and a TaqMan probe were selected for the major capsid protein gene of DIV1. They were shown to be specific for DIV1 and did not react with other common shrimp pathogens or healthy shrimp DNA. The method could detect as virus levels as low as 1.2 copies of DIV1 plasmid DNA.
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