Fig. 3From: Genetic diversity in the plasticity zone and the presence of the chlamydial plasmid differentiates Chlamydia pecorum strains from pigs, sheep, cattle, and koalasA mid-point rooted phylogenetic tree, constructed from the 280kbp core genome alignment with PhyML 3.1 using the GTR model, using 19 C. pecorum pig, cattle, sheep and koala strains. Bootstrap values were calculated using 500 replicates. Bootstrap values > 75 are displayed on the tree nodes. Hosts are indicated by the colouring in the legendBack to article page