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    Regulatory considerations surrounding the deployment of Btexpressing cowpea in Africa: report of the deliberations of an expert panel

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    S11ArtHuesingRegulatoryNothomDev.pdf (309.4Kb)
    Date
    2011
    Author
    Huesing, J.E.
    Romeis, J.
    Ellstrand, N.C.
    Raybould, A.
    Hellmich, R.L.
    Wolt, J.D.
    Ehlers, J.D.
    Dabiré-Binso, L.C.
    Fatokun, C.A.
    Hokanson, K.E.
    Ishiyaku, M.F.
    Margam, V.M.
    Obokoh, N.
    Mignouna, J.D.
    Nang’ayo, F.
    Ouédraogo, J.T.
    Pasquet, R.S.
    Pittendrigh, Barry R.
    Schall, B.A.
    Stein, J.
    Tamo, M.
    Murdock, L.L.
    Type
    Journal Article
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    Abstract/Description
    Cowpea (Vigna unguiculata spp unguiculata) is adapted to the drier agro-ecological zones of West Africa where it is a major source of dietary protein and widely used as a fodder crop. Improving the productivity of cowpea can enhance food availability and security in West Africa. Insect predation – predominately from the legume pod borer (Maruca vitrata), flower thrips (Megalurothrips sjostedti) and a complex of pod-sucking bugs (e.g., Clavigralla spp) – is a major yield-limiting factor in West African cowpea production. Dramatic increases in yield are shown when M. vitrata is controlled with insecticides. However, availability, costs, and safety considerations limit pesticides as a viable option for boosting cowpea production. Development of Bt-cowpea through genetic modification (GM) to control the legume pod borer is a promising approach to cowpea improvement. Cowpea expressing the lepidopteran-active Cry1Ab protein from Bacillus thuringiensis is being developed as a first generation Bt-cowpea crop for West Africa. Appropriate stewardship of Bt-cowpea to assure its sustainability under West African conditions is critical to its successful development. A first step in this process is an environmental risk assessment to determine the likelihood and magnitude of adverse effects of the Cry1Ab protein on key environmental protection goals in West Africa. Here we describe the results of an expert panel convened in 2009 to develop the problem formulation phase for Bt-cowpea and to address specific issues around gene flow, non-target arthropods, and insect resistance management.
    https://dx.doi.org/gmcr.2.3.18689
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2186
    Digital Object Identifier (DOI)
    https://dx.doi.org/gmcr.2.3.18689
    IITA Subjects
    Cowpea; Crop Systems; Handling,Transport, Storage And Protection Of Agricultural Products
    Agrovoc Terms
    Biosafety; Environmental Risk Assessment; Risk Assessment; Gene Flow; Vigna Unguiculata; Cowpeas
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    GM Crops and Food: Biotechnology in Agriculture and the Food Chain
    Collections
    • Journal and Journal Articles5283
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