Fig. 2

Bayesian phylogenetic tree for the PFOR Blastocystis sequences obtained from children from Mexico using a fragment of the PFOR gene. The values of the nodes indicate posterior probabilities using 10,000,000 generations. The GenBank accession numbers of the reference sequences are included; newly sequenced isolates are shown in different colours, ST1 is blue, ST2 is pink, ST3 is green and ST7 is red. Arrowheads point out isolates with mixed infections of ST1 with ST2