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The greenbug [Schizaphis graminum (Rondani)] has been recognized as a major insect pest of sorghum [Sorghum bicolor (L.) Moench] in the Great Plains of the USA since 1968. Biotype E has been prominent since 1980 and twelve sources of resistance within the Sorghum genus have been identified. The o...


Dixon, A.Bramel-Cox, P.J.Harvey, T.[Diallel analysis of resistance in sorghum to greenbug biotype E: antibiosis and tolerance]Diallel analysis of resistance in sorghum to greenbug biotype E: antibiosis and tolerance

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.)

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 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

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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