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Dioscorea alata L. is a highly important crop, widely distributed in the humid and semi-humid tropics. Flow cytometry was used to determine the ploidy levels of 74 D. alata genotypes collected mainly from West African countries. Sixty three of the genotypes were found to be tetraploid, one was he...


Obidiegwu, J.E.Rodríguez, E.Ene-Obong, E.E.Loureiro, J.Muoneke, C.Santos, C.Kolesnikova-Allen, M.Asiedu, Robert[Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry]Ploidy levels of Dioscorea alata L. germplasm determined by flow cytometry

The Guinea yams, Dioscorea cayenensis Lam. and D. rotundata Poir. (D. cayenensis–D. rotundata complex), represent a highly importantcrop, widely distributed in the humid and semi-humidtropics. The ploidy levels of 170 accessions of the core set of Guinea yams from West African coun...


Obidiegwu, J.E.Loureiro, J.Ene-Obong, E.E.Rodríguez, E.Kolesnikova-Allen, M.Santos, C.Muoneke, C.Asiedu, Robert[Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set]Ploidy level studies on the Dioscorea cayenensis/Dioscorea rotundata complex core set

Incorrect labeling of cocoa accessions is a significant that has hindered the efficient conservation and use of cocoa germplasm. The United States Department of Agriculture (USDA), together with the international collaborating institutions, has undertaken a program to identify the cocoa genotypes...


Zhang, D.Boccara, MichelMischke, S.Motilal, L.Kolesnikova-Allen, M.Cryer, N.Turnbull, C.Lanaud, C.Philips-Mora, W.Butler, D.[Detection of mislabeled germplasm in cocoa collections using DNA fingerprinting with SSR markers]Detection of mislabeled germplasm in cocoa collections using DNA fingerprinting with SSR markers

Theobroma cacao L. with its center of diversity in Central and South America was first introduced to West Africa in the mid-19th century and today the region produces 70% of the world's cocoa. Several distinct cocoa types have been introduced, cultivated, and intercrossed across the region. Also,...


Opoku, S.Bhattacharjee, R.Kolesnikova-Allen, M.Motamayor, J.Schnell, R.Ingelbrecht, I.L.Enu-Kwesi, L.Adu-Ampomah, Y.[Genetic diversity in cocoa (Theobroma cacao L.) germplasm collection from Ghana]Genetic diversity in cocoa (Theobroma cacao L.) germplasm collection from Ghana

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