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Summary: Xanthomonas axonopodis pv. manihotis (Xam) is the causative agent of cassava bacterial blight (CBB), a worldwide disease that is particularly destructive in South America and Africa. CBB is controlled essentially through the use of resistant varieties. To develop an appropriate disease m...


Restrepo, S.Duque E., Myriam CristinaTohme, Joseph M.Verdier, Valérie[AFLP fingerprinting : An efficient technique for detecting genetic variation of Xanthomonas axonopodis pv. manihotis]AFLP fingerprinting : An efficient technique for detecting genetic variation of Xanthomonas axonopodis pv. manihotis

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)

Goss, E.M.Cárdenas, M.E.Myers, K.Forbes, G.Fry, W.E.Restrepo, S.Grunwald, N.J.[The plant pathogen Phytophthora andina emerged via hybridization of an unknown Phytophthora species and the Irish potato famine pathogen, P. infestans.]The plant pathogen Phytophthora andina emerged via hybridization of an unknown Phytophthora species and the Irish potato famine pathogen, P. infestans.

Cassava (Manihot esculenta) is a major food staple for nearly 600 million people in Africa, Asia, and Latin America. Major losses in yield result from biotic and abiotic stresses that include diseases such as Cassava Mosaic Disease (CMD) and Cassava Bacterial Blight (CBB), drought, and acid soils...


Anderson, J.W.Delseny, MFregene, Martin A.Jorge, VMba, CLópez, C.E.Restrepo, S.Soto Suárez, M.Piegu, BVerdier, ValérieCooke, RGTohme, Joseph M.Horvat, DP[An EST resource for cassava and other species of Euphorbiaceae]An EST resource for cassava and other species of Euphorbiaceae

Cassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis (Xam) is a destructive disease occurring in most cassava growing-areas. Although Colombian isolates of Xam differ in DNA polymorphism and pathogenicity, no suitable host differentials have been identified to demonstrate phys...


Restrepo, S.Duque E., Myriam CristinaVerdier, Valérie[Characterization of pathotypes among isolates of Xanthomonas axonopodis pv. manihotis in Colombia]Characterization of pathotypes among isolates of Xanthomonas axonopodis pv. manihotis in Colombia

DNA polymorphism and variation in virulence of Xanthomonas axonopodis pv. manihotis (Xam), the causal agent of cassava bacterial blight, were studied within a pathogen population from Venezuela. Collections were made in several fields at different sites within an edaphoclimatic zone where cassava...


Verdier, ValérieRestrepo, S.Mosquera Cifuentes, Gloria MariaDuque E., Myriam CristinaGerstl, ALaberry Saavedra, Rafael Alberto[Genetic and pathogenic variation of Xanthomonas axonopodis pv. manihotis in Venezuela]Genetic and pathogenic variation of Xanthomonas axonopodis pv. manihotis in Venezuela

A cassava cDNA microarray based on a large cassava EST database was constructed and used to study the incompatible interaction between cassava and Xanthomonas axonopodis pv. manihotis (Xam) strain CIO151. For microarray construction, 5700 clones from the cassava unigene set were amplified by poly...


López, C.E.Soto Suárez, M.Restrepo, S.Piegu, BCooke, RGDelseny, MTohme, Joseph M.Verdier, Valérie[Gene expression profile in response to Xanthomonas axonopodis pv. manihotis infection in cassava using a cDNA microarray]Gene expression profile in response to Xanthomonas axonopodis pv. manihotis infection in cassava using a cDNA microarray
Goss, E.M.Tabima, J.F.Cooke, D.E.L.Restrepo, S.Fry, W.E.Forbes, G.Fieland, V.J.Cárdenas, M.Grunwald, N.J.[The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes.]The Irish potato famine pathogen Phytophthora infestans originated in central Mexico rather than the Andes.
Restrepo, S.Verdier, Valérie[Geographical differentiation of the population of Xanthomonas axonopods pv. manihotis in Colombia]Geographical differentiation of the population of Xanthomonas axonopods pv. manihotis in Colombia

Cassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis, is a widespread disease that affects cassava (Manihot esculenta). We collected 238 X. axonopodis pv. manihotis strains by intensively sampling single fields in four edaphoclimatic zones (ECZs) in Colombia. DNA polymorphism ...


Restrepo, S.Velez, C.M.Verdier, Valérie[Measuring the genetic diversity of Xanthomonas axonopodis pv. manihotis within different fields in Colombia]Measuring the genetic diversity of Xanthomonas axonopodis pv. manihotis within different fields in Colombia

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