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Cassava (Manihot esculenta Crantz) is an important security crop that faces severe yield loses due to cassava brown streak disease (CBSD). Motivated by the slow progress of conventional breeding, genetic improvement of cassava is undergoing rapid change due to the implementation of quantitative t...


Kayondo, S.I.Carpio, D.P. delLozano, R.Ozimati, A.A.Wolfe, M.Baguma, Yona K.Gracen, V.Offei, S.Ferguson, M.Kawuki, R.Jannink, Jean-Luc[Genome-wide association mapping and genomic prediction for CBSD resistance in Manihot esculenta]Genome-wide association mapping and genomic prediction for CBSD resistance in Manihot esculenta

Cassava (Manihot esculenta Crantz) is one of the most important food security crops in the tropics and increasingly being adopted for agro-industrial processing. Genetic improvement of cassava can be enhanced through marker-assisted breeding. For this, appropriate genomic tools are required to di...


Rabbi, Ismail Y.Kulembeka, H.P.Masumba, E.Marri, P.Ferguson, M.[An ESTderived SNP and SSR genetic linkage map of cassava (Manihot esculenta Crantz)]An ESTderived SNP and SSR genetic linkage map of cassava (Manihot esculenta Crantz)

Cassava brown streak disease (CBSD) is currently the major disease affecting cassava production in Eastern and Southern Africa. Breeding for resistance has been hampered by a lack of sources of resistance and the complexity of CBSD. This study was initiated to assess the possibility of exploiting...


Tadeo, K.Vincent, K.Yona, B.Robert, K.Ferguson, M.[Inbreeding enhances field resistance to cassava brown streak viruses]Inbreeding enhances field resistance to cassava brown streak viruses

In the last 45 years, IITA has played a pivotal role in the genetic improvement of cassava for resourcepoor farmers in sub-Saharan Africa (SSA). More than 400 varieties have been developed that are not only high yielding but also resistant to diseases and pests. Many of these improved varieties h...


Rabbi, Ismail Y.Gedil, M.Ferguson, M.Kulakow, P.A.[Cassava improvement in the era of "agrigenomics": the road to nextgeneration breeding.]Cassava improvement in the era of "agrigenomics": the road to nextgeneration breeding.

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

Background Production of cassava (Manihot esculenta Crantz), a food security crop in sub-Saharan Africa, is threatened by the spread of cassava brown streak disease (CBSD) which manifests in part as a corky necrosis in the storage root. It is caused by either of two virus species, Cassava brown s...


Kaweesi, T.Kawuki, R.Kyaligonza, V.Baguma, Yona K.Tusiime, GeoffreyFerguson, M.[Field evaluation of selected cassava genotypes for cassava brown streak disease based on symptom expression and virus load]Field evaluation of selected cassava genotypes for cassava brown streak disease based on symptom expression and virus load

Cassava brown streak disease (CBSD) remains a major threat to cassava production in Mozambique. Breeding for CBSD resistant varieties that are also preferred by farmers is an integral part of managing the disease. The main objective of the study was to determine the genetic relationship between f...


Oyesigye, E.Zacarias, A.Mondjana, A.Magaia, H.Ferguson, M.[Single nucleotide polymorphism (SNP) diversity of cassava genotypes in relation to cassava brown streak disease in Mozambique]Single nucleotide polymorphism (SNP) diversity of cassava genotypes in relation to cassava brown streak disease in Mozambique

Studies to quantify genetic variation in cassava germplasm, available within the national breeding programmes in Africa, have been limited. Here, we report on the nature and extent of genetic variation that exists within 1401 cassava varieties from seven countries: Tanzania (270 genotypes); Ugand...


Kawuki, Robert S.Herselman, L.Labuschagne, M.T.Nzuki, I.Ralimanana, I.Bidiaka, M.Kanyange, M.C.Gashaka, G.Masumba, E.Mkamilo, G.S.Gethi, J.Wanjala, B.W.Zacarias, A.Madabula, F.Ferguson, M.[Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa]Genetic diversity of cassava (Manihot esculenta Crantz) landraces and cultivars from southern, eastern and central Africa
Dixon, A.Okechukwu, R.U.Ssemakula, G.N.Hanna, R.Thresh, J.M.Hughes, J.Ingelbrecht, I.Fregene, Martin A.Legg, J.P.Mahungu, N.M.Nweke, F.Ntawuruhunga, PheneasFauquet, Claude M.Manyong, Victor M.Neuenschwander, P.Whyte, J.Wydra, K.Asiedu, RobertEgesi, Chiedozie N.Bandyopadhyay, RanajitWinter, S.Tarawali, G.Bokanga, M.Ezedinma, C.Sanni, L.O.Ferguson, M.Ogbe, F.O.Akoroda, M.O.Maziya-Dixon, B.B.Ilona, P.Ekanayake, I.J.Ariyo, O.Onyeka, J.Otim-Nape, G.W.Dahniya, Mohamed T.Ortiz, R.Hahn, S.K.Hartman, P.[Cassava improvement in sub-Saharan Africa: contributions of IITA and its partners]Cassava improvement in sub-Saharan Africa: contributions of IITA and its partners

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