Development of a One-Step SYBR Green I Real-Time RT-PCR Assay for the Detection and Quantitation of Araraquara and Rio Mamore Hantavirus

Viruses

Alex Martins Machado¹  William Marciel de Souza¹  Michelly de Pฝua²  Aline Rafaela da Silva Rodrigues Machado² 

[1] Virology Research Center, School of Medicine in Ribeirão Preto, University of São Paulo, Av. Bandeirantes n.3900, Monte Alegre, Ribeirão Preto, São Paulo14049-900, Brazil;

关键词: Hantaviruses;    Araraquara virus;    Rio Mamore virus;    real-time quantitative RT-PCR;    SYBR green I;   

DOI  :  10.3390/v5092272

来源: mdpi

【 摘 要 】

Hantaviruses are members of the family Bunyaviridae and are an emerging cause of disease worldwide with high lethality in the Americas. In Brazil, the diagnosis for hantaviruses is based on immunologic techniques associated with conventional RT-PCR. A novel one-step SYBR Green real-time RT-PCR was developed for the detection and quantitation of Araraquara hantavirus (ARAV) and Rio Mamore hantavirus (RIOMV). The detection limit of assay was 10copies/µL of RNA in vitro transcribed of segment S. The specificity of assay was evaluated by melting curve analysis, which showed that the Araraquara virus amplified product generated a melt peak at 80.83 ± 0.89 °C without generating primer-dimers or non-specific products. The assay was more sensitive than conventional RT-PCR and we detected two samples undetected by conventional RT-PCR. The one-step SYBR Green real-time quantitative RT-PCR is specific, sensible and reproducible, which makes it a powerful tool in both diagnostic applications and general research of ARAV and RIOMV and possibly other Brazilian hantaviruses.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.