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Despite the worldwide importance of cultivated cassava (M. esculenta Crantz) its origin and taxonomic relationships with other species in the genus have not been clearly established. We evaluated a representative sample of the crop’s diversity and six wild taxa with AFLPs to estimate genetic rela...


Roa, ACMaya, M.M.Duque E., Myriam CristinaTohme, Joseph M.Allem, ACBonierbale, Merideth W.[AFLP analysis of relationships among cassava and other Manihot species]AFLP analysis of relationships among cassava and other Manihot species

Cassava bacterial blight (CBB) is caused by Xanthomonas axonopodis pv. manihotis (Xam). Resistance is found in Manihot esculenta and, in addition, has been introgressed from a wild relative, M. glaziovii. The resistance is thought to be polygenic and additively inherited. Ninety-three varieties o...


Sánchez, G.M.Restrepo, S.Duque E., Myriam CristinaFregene, Martin A.Bonierbale, Merideth W.Verdier, Valérie[AFLP assessment of genetic variability in cassava accessions (Manihot esculenta) resistant and susceptible to the cassava bacterial blight (CBB)]AFLP assessment of genetic variability in cassava accessions (Manihot esculenta) resistant and susceptible to the cassava bacterial blight (CBB)
Giraldo Zapata, Martha C.Ocampo Nahar, César H.Bravo, EnriqueBonierbale, Merideth W.Debouck, Daniel G.[Polimorfismo isoenzimático corrobora clasificación etnobotánica y distribución de la diversidad de yuca en Colombia]Polimorfismo isoenzimático corrobora clasificación etnobotánica y distribución de la diversidad de yuca en Colombia

The cassava core collection was selected to represent, with minimum repetitiveness, the potential genetic diversity of the crop. The core (630 accessions) was chosen from the base collection (over 5500 accessions) on the basis of diversity of origin (country and geographic), morphology, isozyme p...


Chavarriaga Aguirre, PaulMaya, M.M.Tohme, Joseph M.Duque E., Myriam CristinaIglesias, C.A.Bonierbale, Merideth W.Kresovich, SKochert, G[Using microsatellites, isozymes and AFLPs to evaluate genetic diversity and redundancy in the cassava core collection and to assess the usefulness of DNA-BASED markers to maintain germplasm collections]Using microsatellites, isozymes and AFLPs to evaluate genetic diversity and redundancy in the cassava core collection and to assess the usefulness of DNA-BASED markers to maintain germplasm collections

The genetic resources available for cassava improvement include advanced breeding lines, collected landraces and the crops`s wild relatives. Information about the structure of these gene pools is important in the development of sound germplasm conservation and use strategies. RAPD markers have be...


Bonierbale, Merideth W.Maya, M.M.Claroz, José LuisIglesias, C.A.[Application of molecular markers to describing the genetic structure of cassava gene pools]Application of molecular markers to describing the genetic structure of cassava gene pools

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