Fig. 3. Dendrogram/bootstrap analysis of insect and vertebrate cationic amino acid transporters. Sequence similarity was assessed using amino acid alignments in ClustalW and a rooted tree was calculated by the neighbor-joining method. Confidence values were derived by bootstrapping the dataset, using 1000 replicates. The alignment was visualized using Treeview 1.6.6 (Page, 1996).