Fig. 1.

Phylogenetic tree of Β-tubulin genes. The tree was constructed on the Phylogeny.fr platform, using a maximum likelihood based analysis of seven Parascaris univalens Β-tubulin genes and their full length homologues in Ascaris lumbricoides, Ascaris suum, Toxocara canis, Brugia malayi, Haemonchus contortus, Necator americanus and Onchocerca volvulus retrieved from WormBase Parasite and Caenorhabditis elegans obtained from WormBase. Saccharomyces cerevisiae was used as outgroup for the phylogenetic analysis. * Gene name from WormBase, all other gene names are putative (Table 3).