Target gene sequences and primers. Nucleotide sequences of the LAMP amplicon (ITR, GenBank accession no. AY077834.1 for GSPV and SPPV primers, and GenBank accession no. AY077836.1 for GTPV primers) and locations of the LAMP primers along the sequence. Forward and reverse ITR amplicon are indicated by solid line arrows () and dashed line arrows (), respectively.