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Splinkerette PCR (spPCR) is a newly developed and efficient method to ascertain and characterize genomic insertion sites of transgenes. The method described in this protocol was successfully applied to confirm piggyBac transposon-mediated integration of transgenes into chromosomes of the parasitic nematode Strongyloides ratti . This work is described in detail in Shao et al . (2012) and presented here in a simplified diagram (Figure 1). Using this method, chromosomal loci of integration were determined based on target site and 5'- and 3' flanking sequences. Therefore, spPCR can be a useful method to confirm integrative transgenesis in functional genomic studies of parasitic nematodes. Potter and Luo (2010) contains a protocol for use of spPCR to detect and map piggyBac transposon-mediated chromosomal integrations in Drosophila , and was the source of our method for Strongyloides . The splinkerette- and piggyBac- specific oligos described in that reference could be used without modification in Strongyloides . For interested readers, a general review of the biology of parasitic nematodes in the genus Strongyloides may be found in Viney and Lok (2007), and a methods-based article on S. stercoralis as an experimental model, with information on transgenesis, may be found in Lok (2007).

Detection of piggyBac-mediated Transposition by Splinkerette PCR in Transgenic Lines of Strongyloides ratti