A loop-mediated isothermal amplification assay for the visual detection of duck circovirus

Virology Journal

Sisi Luo¹  Qing Fan¹  Zhiqin Xie¹  Xianwen Deng¹  Yaoshan Pang¹  Jiabo Liu¹  Guangyuan Zhao¹  Zhixun Xie¹  Liji Xie¹ 

[1] Department of Biotechnology, Guangxi Key Laboratory of Animal Vaccines and Diagnostics, Guangxi Veterinary Research Institute, 51 Youai North Road, 530001 Nanning, China

关键词: Visual detection;    Loop-mediated isothermal amplification;    Duck circovirus;   

Others  :  806020
DOI  :  10.1186/1743-422X-11-76

 received in 2014-01-15, accepted in 2014-04-25,  发布年份 2014

【 摘 要 】

Background

Duck circovirus (DuCV) infection in farmed ducks is associated with growth problems or retardation syndromes. Rapid identification of DuCV infected ducks is essential to control DuCV effectively. Therefore_, this study aims to develop of an assay for DuCV to be highly specific, sensitive, and simple without any specialized equipment.

Methods

A set of six specific primers was designed to target the sequences of the Rep gene of DuCV, and A loop-mediated isothermal amplification (LAMP) assay were developed and the reaction conditions were optimized for rapid detection of DuCV.

Results

The LAMP assay reaction was conducted in a 62°C water bath condition for 50 min. Then the amplification products were visualized directly for color changes. This LAMP assay is highly sensitive and able to detect twenty copies of DuCV DNA. The specificity of this LAMP assay was supported by no cross-reaction with other duck pathogens.

Conclusion

This LAMP method for DuCV is highly specific and sensitive and can be used as a rapid and direct diagnostic assay for testing clinical samples.

【 授权许可】

   
2014 Xie et al.; licensee BioMed Central Ltd.

【 图 表 】

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