Fig. 3
From: A novel loop-mediated isothermal amplification-based test for detecting Neospora caninum DNA
LAMP and semi-nested PCR Limit of Detection (LoD). a LAMP reaction. b Semi-nested PCR. Ten-fold serial dilutions of plasmid DNA were used in both a and b; they contained the Nc-5 region for detecting N. caninum by agarose gel electrophoresis analysis. From left to right: Lane MM: HyperLadder II (Bioline) DNA molecular marker; Lane 1: amplification of 1 ng plasmid DNA containing the cloned N. caninum fragment; Lanes 2–7: 10-fold serial dilutions of N. caninum plasmid DNA (10−1 to 10−6 ng); Lane 8: negative control without target DNA. Semi-nested PCR products showed specific amplification of N. caninum, having 10−5 ng LoD whereas LAMP LoD was 10−6 ng. LAMP and semi-nested PCR LoD in both c and d using serial dilutions of N.caninum genomic DNA (NC-1 strain) by visualization on an agarose gel. c LAMP reaction. Lane MM: HyperLadder II (Bioline) DNA molecular marker; Lane 1: amplification of N. caninum genomic DNA (50 ng); Lanes 2–7: 10-fold serial dilutions (10−1 to 10−6 ng); Lane 8: positive control (plasmid DNA); Lane 9: negative control (no DNA template). d Semi-nested PCR. Lane MM: HyperLadder II (Bioline) DNA molecular marker; Lane 1: negative control (no DNA template); Lane 2: amplification of N. caninum genomic DNA (50 ng); Lanes 3–8: 10-fold serial dilutions (10−1 to 10−6 ng); Lanes 9, 10: positive controls (plasmid DNA)