The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes

E. M. Goss, J. F. Tabima, D. E. L. Cooke, S. Restrepo, W. E. Fry, G. A. Forbes, V. J. Fieland, M. Cardenas, N. J. Grunwald
  • Proceedings of the National Academy of Sciences, June 2014, Proceedings of the National Academy of Sciences
  • DOI: 10.1073/pnas.1401884111

Origin of Irish famine potato pathogen

What is it about?

This study evaluates two competing hypotheses about where the origin of the potato late blight pathogen Phytophthora infestans originated.

Why is it important?

The potato late blight pathogen was introduced to Europe in the 1840s and caused the devastating loss of a staple crop, resulting in the Irish potato famine and subsequent diaspora. Research on this disease has engendered much debate, which in recent years has focused on whether the geographic origin of the pathogen is South America or central Mexico. Different lines of evidence support each hypothesis. We sequenced four nuclear genes in representative samples from Mexico and the South American

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The following have contributed to this page: Niklaus J Grünwald and Niklaus J Grunwald