Development of a loop-mediated isothermal amplification assay for rapid and sensitive detection of ostreid herpesvirus 1 DNA
文献类型: 外文期刊
作者: Ren, Weicheng 1 ; Renault, Tristan 2 ; Cai, Yuyong 1 ; Wang, Chongming 1 ;
作者机构: 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao 266071, Shandong, Peoples R China
2.Ifremer, Lab Genet & Pathol, F-17390 La Tremblade, France
3.Ocean Univ China, Dept Aquaculture, Qingdao 266003, Shandong, Peoples R China
关键词: Ostreid herpesvirus 1 (OsHV-1);Oyster;Loop-mediated isothermal amplification (LAMP);Detection
期刊名称:JOURNAL OF VIROLOGICAL METHODS ( 影响因子:2.014; 五年影响因子:2.001 )
ISSN: 0166-0934
年卷期: 2010 年 170 卷 1-2 期
页码:
收录情况: SCI
摘要: A loop-mediated isothermal amplification (LAMP) assay was developed for rapid, specific and sensitive detection of ostreid herpesvirus 1 (OsHV-1) DNA. A set of four primers was designed, based on the sequence of the ATPase subunit of the OsHV-1 DNA-packaging terminase gene. The reaction temperature and time were optimized to 64 degrees C and 60 min, respectively. LAMP products were detected by agarose gel electrophoresis or by visual inspection of a color change due to addition of fluorescent dye. The developed method was highly specific for detection of OsHV-1, and no cross-reaction was observed with other DNA viruses, such as White spot syndrome virus (WSSV), Penaeus stylirostris densovirus (PstDNV). Turbot reddish body iridovirus (TRBIV) and Lymphocystis disease virus (LCDV) found commonly in China. The lower detection limit of the LAMP assay was approximately 20 copies per reaction, and it was 100 times more sensitive than that of conventional PCR. A comparative evaluation of 10 oyster samples using LAMP and PCR assays showed overall correlation in positive and negative results for OsHV-1. These results indicate that the LAMP assay is a simple, rapid, sensitive, specific and reliable technique for the detection of OsHV-1. The LAMP technique has capacity for use for the detection of OsHV-1 both in the laboratory and on farms. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
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