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Chloroplast DNA (cp) and nuclear ribosomal DNA (rDNA) variation was investigated in 45 accessions of cultivated and wild Manihot species. Ten independent mutations, 8 point mutations and 2 length mutations were identified, using eight restriction enzymes and 12 heterologous cpDNA probes from mung...


Fregene, Martin A.Vargas, J.Ikea, J.Angel, F.Thome, J.Asiedu, RobertAkoroda, M.O.Roca, W.[Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives]Variability of chloroplast DNA and nuclear ribosomal DNA in cassava (Manihot esculenta Crantz) and its wild relatives

Cassava (Manihot esculenta) is an allogamous, vegetatively propagated, Neotropical crop that is also widely grown in tropical Africa and Southeast Asia. To elucidate genetic diversity and differentiation in the crop's primary and secondary centers of diversity, and the forces shaping them, SSR ma...


Fregene, Martin A.Suarez, M.Mkumbira, J.Kulembeka, H.P.Ndedya, E.Kulaya, A.Mitchel, S.Gullberg, U.Rosling, H.Dixon, Alfred G.O.Dean, R.[Simple sequence repeat marker diversity in cassava landraces: genetic diversity and differentiation in an asexually propagated crop]Simple sequence repeat marker diversity in cassava landraces: genetic diversity and differentiation in an asexually propagated crop
Akinbo, OlalekanLabuschagne, MarykeFregene, Martin A.[Introgression of root protein and yield traits from backcross hybrids between cassava and its wild progenitor (Manihot esculenta ssp flabellifolia)]Introgression of root protein and yield traits from backcross hybrids between cassava and its wild progenitor (Manihot esculenta ssp flabellifolia)
Wang, W.Feng, BXiao, ZZhou, XLi, PZhang, WWang, Y.Lindberg Møller, BZhang, P.Luo, MXiao, GLiu, JYang, JChen, S.Rabinowicz, PDChen, X.Zhang, HBCeballos, H.Lou, QZou, MCarvalho, LJCBZeng, CXia, J.Sun, SFu, YWang, H.Lu, CRuan, MZhou, S.Wu, ZLiu, HKannangara, RMJørgensen, KNeale, RLBonde, MHeinz, NZhu, WWang, S.Zhang, Y.Pan, KWen, MMa, PLi, ZHu, MLiao, WHu, WZhang, S.Pei, JGuo, AGuo, JZhang, JZhang, Z.Ye, JOu, WMa, YLiu, XTallon, LJGalens, KOtt, SHuang, JXue, JAn, FYao, QLu, XFregene, Martin A.Becerra López Lavelle, Luis AugustoWu, J.You, FMChen, M.Hu, SWu, G.Zhong, SLing, PChen, Y.Wang, Q.Liu, GLiu, BLi, KPeng, M[Cassava genome from a wild ancestor to cultivated varieties]Cassava genome from a wild ancestor to cultivated varieties

Cassava is a major staple and food security crop in Africa which can produce a crop under uncertain rainfall and low fertility conditions. How- ever, it suffers from several pests and diseases, with Cassava Mosaic Disease (CMD) being the main biotic constraint in production in s...


Parkes, E.Fregene, Martin A.Dixon, A.Okogbenin, EmmanuelBoakye-Peprah, B.Labuschagne, M.T.[Developing Cassava Mosaic Disease resistant cassava varieties in Ghana using a marker assisted selection approach]Developing Cassava Mosaic Disease resistant cassava varieties in Ghana using a marker assisted selection approach

Breeding for resistant genotypes is the best strategy to offset the destructive effects of cassava mosaic disease (CMD) and cassava bacterial blight (CBB). Two sets of diallel parents were selected for the forest and the savannah ecological zones in Ghana based on good levels of resistance to CMD...


Parkes, E.Fregene, Martin A.Dixon, A.Boakye-Peprah, B.Labuschagne, M.T.[Combining ability of cassava genotypes for cassava mosaic disease and cassava bacterial blight, yield and its related components in two ecological zones in Ghana]Combining ability of cassava genotypes for cassava mosaic disease and cassava bacterial blight, yield and its related components in two ecological zones in Ghana

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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