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Yams (Dioscorea species of family Dioscoreaceae) are important for food, income, and sociocultural activities especially in West and Central Africa and account for about 93% of the world’s annual production of 38 million tonnes. Breeding of yams is focused primarily on the two dominant species, D...


Asiedu, RobertMignouna, H.Odu, B.Hughes, J.[Yam breeding]Yam breeding

The ploidy levels of the twenty-two yam (Dioscorea cayenensis-D. rotundata complex) cultivars within germplasm Cameroon Guinea yam were determined by flow cytometry. Three different ploidy levels (4x,6x, 8x) were detected within the samples analysed. Fifteen cultivars were tetraploids, five were ...


Dansi, A.Mignouna, H.Pillay, M.Zok, S.[Ploidy variation in the cultivated yams (Dioscorea cayenensisDioscorea rotundata complex) from Cameroon as determined by flow cytometry]Ploidy variation in the cultivated yams (Dioscorea cayenensisDioscorea rotundata complex) from Cameroon as determined by flow cytometry

A genetic linkage map of the tetraploid white yam (Dioscorea rotundata Poir.) was constructed based on 341 co-dominantly scored amplified fragment length polymorphism (AFLP) markers segregating in an intraspecific F1 cross. The F1 mapping population was produced by crossing a landrace cultivar TD...


Mignouna, H.Mank, R.Ellis, T.Bosch, N. van denAsiedu, RobertNg, S.Peleman, J.[A genetic linkage map of guinea yam (Dioscorea rotundata Poir.) based on AFLP markers]A genetic linkage map of guinea yam (Dioscorea rotundata Poir.) based on AFLP markers

The ploidy level of ninety Guinea yam (Dioscorea Cayenesis/D. rotundata complex) cultivars identified within Benin were determined by both chromosome counting from root tip cells and flow cytometry. Three different ploidy levels (4x,6x,8x,) were detected among the samples. Eighty cultivars were t...


Dansi, A.Pillay, M.Mignouna, H.Daïnou, O.Mondeil, F.Moutairou, K.[Ploidy level of the cultivated yams (Dioscorea cayenensis/D. rotundata complex) from Benin Republic as determined by chromosome counting and flow cytometry]Ploidy level of the cultivated yams (Dioscorea cayenensis/D. rotundata complex) from Benin Republic as determined by chromosome counting and flow cytometry

Four forms of Colletotrichum representing three distinct virulence phenotypes were found associated with foliar anthracnose of yam in Nigeria: the highly virulent (= severity of disease) slow-growing grey (SGG); the moderately virulent fast-growing salmon (FGS); the weakly virulent fast-growing g...


Abang, Mathew M.Winter, S.Green, K.Hoffmann, P.Mignouna, H.Wolf, G.[Molecular identification of Colletotrichum gloeosporioides causing yam anthracnose in Nigeria]Molecular identification of Colletotrichum gloeosporioides causing yam anthracnose in Nigeria

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