Fig. 2

Phylogentic analysis of three glutathione S-transferase (Deg-GST) protein sequences derived from Dermanyssus gallinae. Three Deg-GST protein sequences (Deg-GST −1, −2 and −3) were aligned using the ClustalX algorthim along with a selection of homologous and protypal proteins belonging to the selected classes of GSTs: alpha, mu, beta, zeta, delta, omega epsilon and theta. The constituent proteins were manually truncated at the termini to eliminate regions of poor alignment. The phylogenetic tree was determined using the default parameters of MrBayes Baysian tree method with the Whelan & Goldman model (WAG) amino acid substitution model. The accession number and species of each protein is presented. The 3 Deg-GSTs are boxed. The clade credibility of each partition was assessed using posterior probabilities and is presented at each node