The Pinf data set contains 86 isolates genotyped over 11 microsatellite loci collected from Mexico, Peru, Columbia, and Ecuador. This is a subset of the data used for the reference below.
data(Pinf)
Goss, Erica M., Javier F. Tabima, David EL Cooke, Silvia Restrepo, William E. Fry, Gregory A. Forbes, Valerie J. Fieland, Martha Cardenas, and Niklaus J. Gr<U+00FC>nwald. "The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes." Proceedings of the National Academy of Sciences 111:8791-8796. doi: 10.1073/pnas.1401884111