Progress in mapping and cloning qualitative and quantitative resistance against Phytophthora infestans in potato and its wild relatives

Ingo Hein, Paul R. J. Birch, Sarah Danan, Veronique Lefebvre, Damaris Achieng Odeny, Christiane Gebhardt, Friederike Trognitz, Glenn J. Bryan

    Research output: Contribution to journalArticle

    34 Citations (Scopus)

    Abstract

    Cultivated potato is susceptible to many pests and pathogens, none of
    which is more of a threat to potato agriculture than the late blight disease, caused by the oomycete Phytophthora infestans (Mont.) de Bary. To date all efforts to thwart this most adaptive of pathogens have failed, and early attempts to deploy ‘R genes’ introgressed from the wild Mexican hexaploid Solanum demissum ended in abject failure. With the advent of facile gene mapping and cloning, allied to knowledge of plant resistance gene structure, renewed efforts are leading to mapping and isolation of new sources of late blight resistance in potato wild species, many of which are being performed under the auspices of the BIOEXPLOIT project (Sub-project 2). We document recent advances in late blight resistance gene mapping and isolation, and postulate how these genes, allied to knowledge of pathogen effectors and their recognition specificity, may greatly enhance our chances of halting the progress of late blight disease in potato crops worldwide.
    Original languageEnglish
    Pages (from-to)215-227
    JournalPotato Research
    Volume52
    Issue number3
    DOIs
    Publication statusPublished - 2009

    Keywords

    • Cloning
    • Gene mapping
    • Late blight
    • Pathogen effectors
    • Recognition specificity
    • Resistance breeding
    • Solanum tuberosum
    • Wild potato

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