Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): Niklaus J. Grunwald; Matteo Garbelotto; Erica M. Goss; Kurt Huengens; Simone Prospero
    Date: 2012
    Source: Trends in Microbiology. 20(3): 131 -138.
    Publication Series: Scientific Journal (JRNL)
    PDF: Download Publication  (2.58 MB)


    The recently emerged plant pathogen Phytophthora ramorum is responsible for causing the sudden oak death epidemic. This review documents the emergence of P. ramorum based on evolutionary and population genetic analyses. Currently infection by P. ramorum occurs only in Europe and North America and three clonal lineages are distinguished: EU1, NA1 and NA2. Ancient divergence of these lineages supports a scenario in which P. ramorum originated from reproductively isolated populations and underwent at least four global migration events. This recent work sheds new light on mechanisms of emergence of exotic pathogens and provides crucial insights into migration pathways. [Partially funded by USDA FS PSW agreement 11-IA-11272131-077.]

    Publication Notes

    • You may send email to to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Grunwald, Niklaus J.; Garbelotto, Matteo; Goss, Erica M.; Huengens, Kurt; Prospero, Simone. 2012. Emergence of the sudden oak death pathogen Phytophthora ramorum. Trends in Microbiology. 20(3): 131 -138.


    Google Scholar


    sudden oak death, Phytophthora ramorum, population genetics, invasive species

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page