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    Resistance genes in global crop breeding networks

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    U17ArtGarrettResistanceInthomNodev.pdf (11.54Mb)
    Date
    2017-10
    Author
    Garrett, K.A.
    Andersen, Kelsey F.
    Asche, F.
    Bowden, R.L.
    Forbes, G.
    Kulakow, P.A.
    Zhou, B.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Resistance genes are a major tool for managing crop diseases. The networks of crop breeders who exchange resistance genes and deploy them in varieties help to determine the global landscape of resistance and epidemics, an important system for maintaining food security. These networks function as a complex adaptive system, with associated strengths and vulnerabilities, and implications for policies to support resistance gene deployment strategies. Extensions of epidemic network analysis can be used to evaluate the multilayer agricultural networks that support and influence crop breeding networks. Here, we evaluate the general structure of crop breeding networks for cassava, potato, rice, and wheat. All four are clustered due to phytosanitary and intellectual property regulations, and linked through CGIAR hubs. Cassava networks primarily include public breeding groups, whereas others are more mixed. These systems must adapt to global change in climate and land use, the emergence of new diseases, and disruptive breeding technologies. Research priorities to support policy include how best to maintain both diversity and redundancy in the roles played by individual crop breeding groups (public versus private and global versus local), and how best to manage connectivity to optimize resistance gene deployment while avoiding risks to the useful life of resistance genes.
    http://dx.doi.org/10.1094/phyto-03-17-0082-fi
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2292
    Digital Object Identifier (DOI)
    http://dx.doi.org/10.1094/phyto-03-17-0082-fi
    Research Themes
    BIOTECH & PLANT BREEDING
    IITA Subjects
    Crop Systems; Food Security; Genetic Improvement; Plant Breeding; Plant Diseases; Plant Genetic Resources
    Agrovoc Terms
    Gene; Food Security; Climate Change; Crop Breeding; Crop Diseases; Resistance Genes; Crop Breeding Networks; Crop Breeder Groups; Network
    Journals
    Phytopathology
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    • Journal and Journal Articles5283
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