Phylogenetic relationships among Theileria types isolated in NSW and QLD based on SSU rRNA sequences. The tree was constructed using the neighbor-joining algorithm with molecular distances estimated by the Kimura-2 parameter model. This tree shows chitose, buffeli and ikeda types in 3 different clades. One corresponding sequence each from T. parva (AF013418) and T. annulata (AY524666) served as outgroups. Bootstrap values are shown as percentages at each node based on 1000 replicates. Branch lengths correlate to the number of substitutions inferred according to the scale shown.