Xie Z, Peng Y, Luo S, Wang Y, Liu J, Pang Y, Deng X, Xie Z, Xie L, Fan Q, Teng L, Wang X. Development of a reverse transcription loop-mediated isothermal amplification assay for visual detection of avian reovirus.
Avian Pathol 2012;
41:311-6. [PMID:
22702459 DOI:
10.1080/03079457.2012.686104]
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Abstract
Avian reovirus (ARV) is an important pathogen of poultry and causes significant economic losses to the poultry industry. To develop a rapid and sensitive method for the surveillance of ARV, a reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was established using a set of six primers specific to the S1 gene segment of ARV. The established assay was performed at 62°C for 60 min in a thermal block, and the result was visualized directly under daylight or ultraviolet light. The detection limit of the RT-LAMP assay was 10 fg total RNA, which was 100-fold higher than that of reverse transcriptase polymerase chain reactions. The specificity of the assay was supported by the lack of cross-reaction with other avian pathogens. Furthermore, viral RNAs of field isolates were successfully detected by the assay. Overall, the newly established RT-LAMP assay is simple, rapid, sensitive, specific, and can visually detect ARV without the use of any specialized equipment.
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