Details of the three genetic datasets that were used in this study.

WormsSCAN: worms obtained from the Schistosomiasis Collection at the Natural History Museum in London [37]. DMS1: microsatellite dataset 1. DMS2: microsatellite dataset 2. DSEQ: cox1 dataset. AC DSEQ = accession number of cox1 sequences from Genbank; only unique sequences (haplotypes) were submitted to GenBank. Collection of microsatellite genotypes and cytochrome c oxidase subunit 1 sequences that were obtained from Schistosoma mansoni samples during this study or during previous studies [38,42]. The region and year of sampling and the type of sample used as source for DNA template are listed for each sample. Note that the number of samples for each dataset reflects the total number of samples that were successfully genotyped for all loci.