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Cassava brown streak disease (CBSD) is the most important virus disease of cassava and a major food security threat in Africa. Yearly economic losses of up to $100 million USD have been attributed to CBSD. The lack of information on plant-virus interactions has restricted progress in breeding for...


Shirima, R.R.Maeda, D.GKanju, E.Ceasar, G.Tibazarwa, F.I.Legg, J.P.[Absolute quantification of cassava brown streak virus mRNA by real-time qPCR]Absolute quantification of cassava brown streak virus mRNA by real-time qPCR

The greatest current threat to cassava in sub-Saharan Africa, is the continued expansion of plant virus pandemics being driven by super-abundant populations of the whitefly vector, Bemisia tabaci. To track the association of putatively genetically distinct populations of B. tabaci with pandemics ...


Legg, J.P.Sseruwagi, P.Boniface, S.Okao-Okuja, G.Shirima, R.R.Bigirimana, S.Gashaka, G.Herrmann, H-W.Jeremiah, S.Ndyetabula, I.Tata-Hangy, W.Masembe, C.Brown, J.Obiero, H.[Spatiotemporal patterns of genetic change amongst populations of cassava Bemisia tabaci whiteflies driving virus pandemics in East and Central Africa]Spatiotemporal patterns of genetic change amongst populations of cassava Bemisia tabaci whiteflies driving virus pandemics in East and Central Africa

Cassava mosaic disease and cassava brown streak disease are caused by viruses transmitted by Bemisia tabaci and affect approximately half of all cassava plants in Africa, resulting in annual production losses of more than $US 1 billion. A historical and current bias towards virus rather than vect...


Legg, J.P.Shirima, R.R.Tajebe, L.Guastella, D.Boniface, S.Jeremiah, S.Nsami, E.Chikoti, Patrick ChizaRapisarda, C.[Biology and management of Bemisia whitefly vectors of cassava virus pandemics in Africa]Biology and management of Bemisia whitefly vectors of cassava virus pandemics in Africa

The whitefy Bemisia tabaci, a species complex consisting of many morphologically indistinguishable species divided into distinct clades, is one of the most globally important agricultural pests and plant virus vectors. Cassava-colonizing B. tabaci transmits viruses that cause cassava mosaic disea...


Chen, W.Wosula, Everlyne N.Hasegawa, D.K.Casinga, C.Shirima, R.R.Fiaboe, K.K.M.Hanna, R.Fosto, A.Goergen, Georg E.Tamò, M.Mahuku, George S.Murithi, H.M.Tripathi, L.Mware, B.Kumar, P.L.Ntawuruhunga, PheneasMoyo, C.Yomeni, M.Boahen, S.Edet, M.Awoyale, W.Wintermantel, William M.Ling, K.S.Legg, J.P.Fei, Z.[Genome of the African cassava whitefly Bemisia tabaci and distribution and genetic diversity of cassava-colonizing whiteflies in Africa]Genome of the African cassava whitefly Bemisia tabaci and distribution and genetic diversity of cassava-colonizing whiteflies in Africa

Cassava brown streak disease (CBSD), caused by cassava brown streak ipomoviruses (CBSIs), has become the most debilitating biotic stress to cassava production in East and Central Africa. Lack of CBSD-resistant varieties has necessitated the search for alternative control measures. Most smallholde...


Shirima, R.R.Maeda, D.G.Kanju, E.E.Tumwegamire, SilverCeasar, G.Mushi, E.Sichalwe, C.Mtunda, K.Mkamilo, G.Legg, J.[Assessing the degeneration of cassava under high-virus inoculum conditions in coastal Tanzania]Assessing the degeneration of cassava under high-virus inoculum conditions in coastal Tanzania

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