FIG. 2.

Representative neighbor-joining tree based on multiple sequence alignments of the partial msp4 nucleotide sequences (719 bp) of Tunisian strains with strains isolated in the Mediterranean area. Numbers in nodes represent the percentage of 1000 bootstrap reiterations supporting the nodes (only percentages greater than 50% are shown). The host or vector, strain or isolate identification, country of origin, and GenBank accession number are indicated in the tree for each sequence. Sequences newly obtained in this study are highlighted in bold and marked with asterisks.