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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.)

For the first time, sufficient numbers of molecular markers that reveal polymorphism in cultivated peanut (Arachis hypogaea L.) have become available for diversity assessments. In this study, the amount and distribution of genetic variation within and among six peanut botanical varieties, as well...


Ferguson, M.Bramel-Cox, P.J.Chandra, S.[Gene diversity among botanical varieties in peanut (Arachis hypogaea L.)]Gene diversity among botanical varieties in peanut (Arachis hypogaea L.)

Sorghum [Sorghumbicolor (L.) Moench] is a very important crop in the Sudan serving as a primary source of food, beverage, and total livelihood for millions of people in the country. The crop originated in the Northeast quadrant of Africa, and the Sudan is widely recognized as a major center of di...


Grenier, CécileBramel-Cox, P.J.Dahlberg, J.El Ahmadi, A.Mahmoud, M.Peterson, G.Rosenow, D.Ejeta, G.[Sorghums of the Sudan: analysis of regional diversity and distribution]Sorghums of the Sudan: analysis of regional diversity and distribution

The characterization of diversity in germplasm collection is important to plant breeders to utilize and to the genebank curators to manage the collection efficiently and effectively. The objective of our study was to describe the phenotypic diversity in the 13342 accessions of groundnut (Arachis ...


Upadhyaya, Hari D.Bramel-Cox, P.J.Ortiz, R.Singh, S.[Geographical patterns of diversity for morphological and agronomic traits in the groundnut germplasm collection]Geographical patterns of diversity for morphological and agronomic traits in the groundnut germplasm collection

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

Bananas and plantains ( Musa spp .) are the world’s fourth most important food crop after rice, wheat, and maize in terms of gross value of production. They are major staple food and source of income for millions of people in tropical and subtropical regions; particularly in Af...


Tripathi, L.Tripathi, J.N.Tenkouano, A.Bramel-Cox, P.J.[Banana and plantain]Banana and plantain
International Institute of Tropical AgricultureAsiedu, RobertBramel-Cox, P.J.Chikoye, D.Manyong, Victor M.López, K.[R4D Review]R4D Review

Cassava has long been expected to play a key role in rural economic growth in Africa, but are we there yet? Although research partnerships have produced elite cassava varieties with 50% more yielding potential and demonstrated technologies to boost processing and marketing of cassava, the sub-sec...


James, B.Bramel-Cox, P.J.Witte, E.R.Asiedu, RobertWatson, D.Okechukwu, R.U.[Expanding the application of cassava value chain technologies through UPoCA project]Expanding the application of cassava value chain technologies through UPoCA project

Peanut (Arachis hypogaea L.) breeding programs with a goal of rapid cultivar development have used mainly elite breeding lines and cultivars, which has resulted in the development of breeding materials with a narrow genetic base. Utilization of exotic germplasm resources in breeding programs is n...


Upadhyaya, H.Bramel-Cox, P.J.Ortiz, R.Singh, S.[Developing a mini core of peanut for utilization of genetic resources]Developing a mini core of peanut for utilization of genetic resources

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