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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

A time-course transcriptome analysis of two cassava varieties that are either resistant or susceptible to cassava brown streak disease (CBSD) was conducted using RNASeq, after graft inoculation with Ugandan cassava brown streak virus (UCBSV). From approximately 1.92 billion short reads, the large...


Amuge, T.Berger, D.K.Katari, M.S.Myburg, A.A.Goldman, S.L.Ferguson, Morag E.[A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus]A time series transcriptome analysis of cassava (Manihot esculenta Crantz) varieties challenged with Ugandan cassava brown streak virus

To restore food security to a traditional African cropping system following a sudden loss of seed, genetic diversity must be re-established. This study examines the extent to which Cowpea diversity was reinstated two years after a flood disaster in Gaza Province, Mozambique. The contribution that...


Ferguson, Morag E.Jones, R.B.Bramel-Cox, P.J.Domínguez, C.Torre do Vale, C.Han, J.[Postflooding disaster crop diversity recovery: a case study of cowpea in Mozambique]Postflooding disaster crop diversity recovery: a case study of cowpea in Mozambique

Although numerous studies of diversity have been conducted in cassava, there is no comprehensive assessment of global genetic diversity. Here we draw on previous studies and breeders’ knowledge to select diversity sets from the International Institute of Tropical Agriculture (IITA) and the Intern...


Ferguson, Morag E.Shah, TrusharKulakow, PeterCeballos, Hernan[A global overview of cassava genetic diversity]A global overview of cassava genetic diversity

A major constraint to the application of biotechnology to the improvement of the allotetraploid peanut, or groundnut (Arachis hypogaea L.), has been the paucity of polymorphism among germplasm lines using biochemical (seed proteins, isozymes) and DNA markers (RFLPs and RAPDs). Six sequence-tagged...


Ferguson, Morag E.Burow, Mark DSchulze, S.R.Bramel-Cox, P.J.Paterson, A.H.Kresovich, S.Mitchell, S.[Microsatellite identification and characterization in peanut (A. hypogaea L.)]Microsatellite identification and characterization in peanut (A. hypogaea L.)

Genetic mapping of quantitative trait loci (QTL) for resistance to cassava brown streak disease (CBSD), cassava mosaic disease (CMD), and cassava green mite (CGM) was performed using an F1 cross developed between the Tanzanian landrace, Kiroba, and a breeding line, AR37-80. The population was eva...


Nzuki, I.Katari, M.S.Bredeson, J.V.Masumba, E.Kapinga, F.Salum, K.Mkamilo, G.S.Shah, TushaarLyons, J.B.Rokhsar, D.S.Rounsley, S.Myburg, A.A.Ferguson, Morag E.[QTL mapping for pest and disease resistance in cassava and coincidence with some introgression regions derived from M. glaziovii]QTL mapping for pest and disease resistance in cassava and coincidence with some introgression regions derived from M. glaziovii

Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB) targets highly diverse biotic and abiotic constraints, whilst meeting complex end-user quality preferences to improve livelihoods of beneficiaries in developing countries. Achieving breeding targets and increasing the rate ...


Friedmann, MichaelAsfaw, AsratAnglin, Noelle L.Becerra López Lavelle, Luis AugustoBhattacharjee, RanjanaBrown, AllanCarey, EdwardFerguson, Morag E.Gemenet, DorcusLindqvist-Kreuze, HaneleRabbi, Ismail Y.Rouard, MathieuSwennen, RonyThiele, Graham[Genomics-Assisted Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB)]Genomics-Assisted Breeding in the CGIAR Research Program on Roots, Tubers and Bananas (RTB)

The conservation status of wild Arachis spp. is not well characterized for its maintenance and possible future exploitation for the improvement of cultivated peanut, Arachis hypogaea L. Our objectives were to use 2175 georeferenced observations of wild peanut (Arachis spp.) to assess the conserva...


Jarvis, AndyFerguson, Morag E.Williams, D.E.Guarino, LuigiJones, Peter G.Stalker, H.T.Valls, JFMPittman, RNSimpson, CEBramel-Cox, P.J.[Biogeography of wild Arachis: Assessing conservation status and setting future priorities]Biogeography of wild Arachis: Assessing conservation status and setting future priorities

The availability of genomic resources can facilitate progress in plant breeding through the application of advanced molecular technologies for crop improvement. This is particularly important in the case of less researched crops such as cassava, a staple and food security crop for more than 800 m...


Ferguson, Morag E.Hearne, S.J.Close, T.J.Wanamaker, S.Moskal, W.A.Town, C.D.Young, J. deMarri, P.R.Rabbi, Ismail Y.Villiers, Etienne P. de[Identification, validation and high-throughput genotyping of transcribed gene SNPs in cassava]Identification, validation and high-throughput genotyping of transcribed gene SNPs in cassava

Inbreeding of predominantly cross-pollinating crops is expected to result in the generation of progeny with reduced fitness and/or progeny with improved phenotypes. However, this effect is not well documented in cassava (Manihot esculenta Crantz). In this study, S1 progeny from six cassava genoty...


Kawuki, Robert S.Nuwamanya, E.Labuschagne, M.T.Herselman, L.Ferguson, Morag E.[Segregation of selected agronomic traits in six S1 cassava families]Segregation of selected agronomic traits in six S1 cassava families

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