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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

Cassava production in Africa is compromised by cassava brown streak disease (CBSD) and cassava mosaic disease (CMD). To reduce costs and increase the precision of resistance breeding, a QTL study was conducted to identify molecular markers linked to resistance against these diseases. A bi-parenta...


Masumba, E.A.Kapinga, F.Mkamilo, G.S.Salum, K.Kulembeka, H.P.Rounsley, S.Bredeson, J.V.Lyons, J.B.Rokhsar, D.S.Kanju, E.Katari, M.S.Myburg, A.A.Merwe, N.A. van derFerguson, Morag E.[QTL associated with resistance to cassava brown streak and cassava mosaic diseases in a bi-parental cross of two Tanzanian farmer varieties, Namikonga and Albert]QTL associated with resistance to cassava brown streak and cassava mosaic diseases in a bi-parental cross of two Tanzanian farmer varieties, Namikonga and Albert

Cassava (Manihot esculenta Crantz) provides the cheapest source of food calories in Africa and forms the major staple for roughly 40% of Africans. More than 200 million people in sub-Saharan Africa derive over 50% of their carbohydrate intake from cassava. It has been recognised as a powerful pov...


Kanju, E.Mkamilo, G.S.Mgoo, V.Ferguson, M.[Statistical evidence linking the zigzag stem habit with tolerance to cassava brown streak disease]Statistical evidence linking the zigzag stem habit with tolerance to cassava brown streak disease

Cassava brown streak disease (CBSD) has become a major constraint to cassava production in East and Central Africa. The identification of new sources of CBSD resistance is essential to deploy CBSD mitigation strategies, as the disease is progressing westwards to new geographical areas. A stringen...


Anjanappa, R.B.Mehta, D.Maruthi, M.N.Kanju, E.Gruissem, W.Vanderschuren, H.[Characterization of brown streak virus–resistant cassava]Characterization of brown streak virus–resistant cassava

Here, we report a method to clean cassava plants from viral infections that cause cassava mosaic and brown streak diseases in Africa. Infected plants of resistant or tolerant varieties from Malawi, Mozambique, Kenya, Tanzania and Uganda were cleaned in the UK using a combination of tissue culture...


Maruthi, M.N.Whitfield, E.C.Otti, G.Tumwegamire, SilverKanju, E.Legg, J.P.Mkamilo, G.Kawuki, R.Benesi, I.Zacarias, A.Munga, T.Mwatuni, F.Mbugua, E.[A method for generating virus-free cassava plants to combat viral disease epidemics in Africa]A method for generating virus-free cassava plants to combat viral disease epidemics in Africa

Tumwegamire, SilverKanju, E.Legg, J.P.Shirima, R.Kombo, S.Mkamilo, G.S.Mtunda, K.Sichalwe, K.Kulembeka, H.P.Ndyetabura, I.Saleh, H.Kawuki, R.Alicai, TitusAdiga, G.Benesi, I.Mhone, A.Zacarias, A.Matsimbe, S.F.Munga, T.Ateka, E.Navangi, L.Maruthi, M.N.Mwatuni, F.Ngundo, G.Mwangangi, M.Mbugua, E.Ndunguru, J.Rajabu, C.Mark, D.[Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa]Exchanging and managing in-vitro elite germplasm to combat cassava brown streak disease (CBSD) and cassava mosaic disease (CMD) in Eastern and Southern Africa

Cassava is an important staple food in subtropical regions; however, its production is adversely affected by cassava brown streak disease and poor soil fertility. Five improved and two local cassava varieties were evaluated for three seasons across two sites in Kizimbani, Zanzibar. Highly signifi...


Kanju, E.Uzokwe, V.N.E.Saleh, H.Mohamed, S.Masumba, E.Tumwegamire, SilverMtunda, K.[Performance of cassava brown streak disease-tolerant varieties in Zanzibar, Tanzania]Performance of cassava brown streak disease-tolerant varieties in Zanzibar, Tanzania

Cassava (Manihot esculenta Crantz) and the viruses that infect it, notably cassava mosaic virus and cassava brown streak viruses, have a unique history of co-evolution and co-existence. While cassava originated in South America, both viruses and the diseases they cause have largely been limited t...


Kawuki, Robert S.Adiga, G.Orone, J.Alicai, TitusEdimu, M.Omara, T.Pariyo, A.Esuma, W.Omongo, C.Bua, A.Kanju, E.Baguma, Yona K.[Limits of phytosanitation and host plant resistance towards the control of cassava viruses in Uganda]Limits of phytosanitation and host plant resistance towards the control of cassava viruses in Uganda

Cassava brown streak disease (CBSD) has emerged as the most important viral disease of cassava (Manihot esculenta) in Africa and is a major threat to food security. CBSD is caused by two distinct species of ipomoviruses, Cassava brown streak virus and Ugandan cassava brown streak virus, belonging...


Patil, B.L.Legg, J.P.Kanju, E.Fauquet, Claude M.[Cassava brown streak disease: a threat to food security in Africa]Cassava brown streak disease: a threat to food security in Africa

Cassava brown streak disease (CBSD) is an economically important virus disease causing significant losses to cassava root yield and quality in east, central and southern Africa. Breeding for resistance in cassava requires an understanding of the underlying genetic control of CBSD resistance. Sour...


Kulembeka, H.P.Ferguson, M.Herselman, L.Kanju, E.Mkamilo, G.S.Masumba, E.Fregene, Martin A.Labuschagne, M.T.[Diallel analysis of field resistance to brown streak disease in cassava (Manihot esculenta Crantz) landraces from Tanzania]Diallel analysis of field resistance to brown streak disease in cassava (Manihot esculenta Crantz) landraces from Tanzania

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