Fig. 1

Optimal Maximum Likelihood phylogeny for Toxoplasma gondii PCR-RFLP SAG3 sequences from 18 beavers, 9 polecats, 11 ferrets, 3 mink, and 1 badger from the UK, compared to 38 published European sequences. Generated using an alignment of 145 base pairs with reference sequences from non-beaver UK wildlife and other European sequences indicated by accession numbers. Sequences from the reference GT1, ME49 and VEG strains included as representatives of the I, II and III archetypes accessed from ToxoDB. The sequences denoted with superscript letters represent clusters of identical sequences. Support for each node is presented, indicating outcomes from Maximum Likelihood (ML)/Neighbor-Joining (NJ)/ Unweighted Pair Group Method with Arithmetic Mean (UPMGA) methods. Beaver sequences available under the accession numbers PV059145-PV059162.