FIG 3 .

Bayesian phylogenetic analysis of C. immitis isolates. Beast 1.8.1 was used to produce a calibrated phylogeny, where the time to most recent common ancestor estimated for C. immitis from the dual-species analysis whose results are presented in Fig. 1 was used for calibration here (TMRCA for C. posadasii, 365,700 years). The analysis was performed on WGS data from 18 C. posadasii genomes. Posterior probabilities are indicated by node size. Purple node bars are shown for each node and are informative for the 95% confidence interval for the timing estimate. The timeline represents years before the present.