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Mining Herbaria for Plant Pathogen Genomes: Back to the Future

Figure 3

The 19th-century P. infestans belong to a single clonal lineage, HERB-1.

(A) Maximum-parsimony tree of complete mtDNA genomes. Sites with less than 90% information were not considered, leaving 24,526 sites in the final dataset. (B) Maximum-likelihood tree based on nuclear SNPs. Only sites with 100% information were considered, leaving 2,359,452 sites in the final dataset. Numbers at branches of both trees indicate bootstrap support (100 replicates), and scales indicate genetic distance. PmP7722 and Pm99114 are P. mirabilis. Pip99167 is P. ipomoeae. These three strains were used as outgroup species. The details of the tree construction were described in Yoshida et al. (2013) [10].

Figure 3

doi: https://doi.org/10.1371/journal.ppat.1004028.g003