Abstract
Loop-mediated isothermal amplification (LAMP) method is a novel, sensitive and rapid technique which can be applied for disease diagnosis in aquaculture. Using the LAMP method, a highly specific and sensitive diagnostic system for white spot syndrome virus (WSSV) detection was designed. A set of four primers, two outer and two inner primers, were designed from WSSV genome DNA. Reaction time and temperatures were optimized for 60 min at 65 °C, respectively. The detection limit (DL) using the LAMP method was up to 1 fg, when compared to 10 fg by nested polymerase chain reaction (PCR). Thus, standardized LAMP procedure was used to detect the presence of WSSV in the heart, stomach and lymphoid organ from infected shrimp. The study has developed a diagnostic procedure which is a rapid and highly sensitive for WSSV detection in shrimp.
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