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    Cassava mosaic geminiviruses associated with cassava mosaic disease in Rwanda

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    S05ArtSseruwagiCassavaInthomDev.PDF (951.0Kb)
    Date
    2005
    Author
    Sseruwagi, P.
    Okao-Okuja, G.
    Kalyebi, A.
    Muyango, S.
    Aggarwal, V.
    Legg, J.P.
    Type
    Journal Article
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    Abstract/Description
    Cassava mosaic disease (CMD), and cassava mosaic geminiviruses (CMGs), were investigated in a country-wide survey conducted in six cassava-producing prefectures (administrative regions) of Rwanda in 2001. CMD occurred throughout the country at an average incidence of 30%. Incidence was highest in Kigali (44%) and lowest in Butare (11%). Cutting infection resulting from the use of CMD-affected planting material was the main type of infection. Disease symptoms were generally severe, with little difference between cultivars or locations. Most affected plants lacked the ‘candle-stick’ symptoms characteristic of severe CMD associated with infection by the ‘Uganda Variant’ of East African cassava mosaic virus (EACMV-UG2). PCR analysis detected two viruses in CMD-affected plants: African cassava mosaic virus (ACMV) and EACMV-UG2. ACMV predominated and occurred throughout the surveyed areas, whereas EACMV-UG2 was restricted to the prefectures of Byumba, which border south-western Uganda and Kibungo in south-eastern Rwanda. No dual infections were detected.
    https://dx.doi.org/10.1080/09670870400016750
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/3351
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.1080/09670870400016750
    IITA Subjects
    Disease Control; Plant Production; Pests Of Plants; Plant Breeding; Plant Ecology; Plant Genetic Resources; Plant Health; Livelihoods; Farm Management; Plant Diseases; Smallholder Farmers; Handling, Transport, Storage And Protection Of Agricultural Products
    Agrovoc Terms
    Cassava; African Cassava Mosaic Virus; Cassava Mosaic Geminiviruses; East African Cassava Mosaic Virus; Whitefly Populations
    Regions
    Africa; Acp; East Africa; Central Africa; Europe
    Countries
    Uganda; Rwanda; United Kingdom
    Collections
    • Journal and Journal Articles4835

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