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Validation of RT-LAMP assay for the detection of the PVS using randomly collected leaf samples from potato fields. a Agarose gel electrophoresis of RT-LAMP products. M-1 kb ladder, lane 1-positive control, lanes 2 to 20-PVS suspected leaf samples, lane 21-water control, lane 22-healthy control. b Visualization of RT-LAMP products under UV excitation at 365 nm. The tubes in (b) from left to right containing the RT-LAMP products and SYBR Green I are the same as those in lanes 1–22 (a)
