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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)

Una de las principales estrategias para el manejo del Añublo Bacterial de la Yuca (CBB), causado por Xanthomonas axonopodis pv. manihotis es el uso de resistencia varietal, que implica desarrollar variedades de yuca con resistencia genética duradera. Para tal fin, es necesario conocer los genes q...


Hurtado Lopez, PXÁlvarez, E.Llano Rodríguez, Germán AlbertoFregene, Martin A.[Detección de marcadores microsatélites asociados con la resistencia al añublo bacterial de la yuca (Manihot esculenta Crantz) en Colombia]Detección de marcadores microsatélites asociados con la resistencia al añublo bacterial de la yuca (Manihot esculenta Crantz) en Colombia

The common bean (Phaseolus vulgaris L.) is an important grain legume crop in Malawi where it is grown by small holder farmers for food as well as for sale. Among the many diseases that limit crop productivity is the common bacterial blight caused by Xanthomonas axonopodis pv phaseoli (Xap). Effec...


Chataika, Bartholomew Y.E.Bokosi, J.M.Chirwa, R.M.[Inheritance of resistance to common bacterial blight in common bean]Inheritance of resistance to common bacterial blight in common bean

Geo-referenced surveys were conducted in 2001 and 2003 to assess the prevalence and severity of cassava bacterial blight (CBB) and cassava anthracnose disease (CAD) in different agro-ecological zones of Nigeria. A total of 132 fields were visited in 2001 as follow: humid forest (HF) 42, derived s...


Onyeka, T.J.Owolade, O.F.Ogunjobi, A.A.Dixon, Alfred G.O.Okechukwu, R.U.Bamkefa, B.[Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agroecological zones of Nigeria]Prevalence and severity of bacterial blight and anthracnose diseases of cassava in different agroecological zones of Nigeria

Cassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis (Xam), is a particularly destructive disease in South America and Africa. Because of quarantine procedures, international exchange of cassava germplasm is limited and occurs through true seeds or material propagated in vitro...


Ojeda, SVerdier, Valérie[Detecting Xanthomonas axonopodis pv. manihotis in cassava true seeds by nested polymerase chain reaction assay]Detecting Xanthomonas axonopodis pv. manihotis in cassava true seeds by nested polymerase chain reaction assay

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

Cassava bacterial blight (CBB), caused by Xanthomonas axonopodis pv. manihotis (Xam), is a particularly destructive disease in South America and Africa. The movement of infected asymptomatic stems is a major means of pathogen dispersal as well as infected seeds. The success of a cassava-seed cert...


Verdier, ValérieOjeda, SMosquera Cifuentes, Gloria Maria[Methods for detecting the cassava bacterial blight pathogen : A practical approach for managing the disease]Methods for detecting the cassava bacterial blight pathogen : A practical approach for managing the disease

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

Cassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis (Xam), is a widespread disease that affects cassava (Manihot esculenta Crantz). Studies on the pathogen population structure, pathogen diagnosis, identification and expression of plant genes involved in resistance have been ...


Verdier, ValérieRestrepo, S.Mosquera Cifuentes, Gloria MariaJorge, VLópez, C.E.[Recent progress in the characterization of molecular determinants in the Xanthomonas axonopodis pv. manihotis cassava interaction]Recent progress in the characterization of molecular determinants in the Xanthomonas axonopodis pv. manihotis cassava interaction

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