Emergence of the sudden oak death pathogen Phytophthora ramorum

Niklaus J Grünwald, Matteo Garbelotto, Erica M Goss, Kurt Heungens, Simone Prospero

    Research output: Contribution to journalA1: Web of Science-articlepeer-review


    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.
    Original languageEnglish
    JournalTrends in Microbiology
    Issue number3
    Pages (from-to)131-8
    Number of pages8
    Publication statusPublished - 2012


    • Europe
    • Evolution, Molecular
    • North America
    • Phytophthora
    • Plant Diseases
    • Quercus


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