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Journal Article 2000

Autor: Ojeda, S Verdier, Valérie

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43320

Investigación en Agricultura
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Ojeda, S ,  Verdier, 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
Journal Article 2000

Autor: Restrepo, S. Duque E., Myriam Cristina Verdier, Valérie

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43260

Investigación en Agricultura
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Restrepo, S. ,  Duque E., Myriam Cristina ,  Verdier, 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
Journal Article 1998

Autor: Verdier, Valérie Restrepo, S. Mosquera Cifuentes, Gloria Maria Duque E., Myriam Cristina Gerstl, A Laberry Saavedra, Rafael Alberto

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...

Enlace original: https://cgspace.cgiar.org/handle/10568/43482

Investigación en Agricultura
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Verdier, Valérie ,  Restrepo, S. ,  Mosquera Cifuentes, Gloria Maria ,  Duque E., Myriam Cristina ,  Gerstl, A ,  Laberry 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
Journal Article 1997

Autor: Restrepo, S. Verdier, Valérie
Enlace original: https://cgspace.cgiar.org/handle/10568/65777

Investigación en Agricultura
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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
Journal Article 2001

Autor: Jorge, V Fregene, Martin A. Velez, C.M. Duque E., Myriam Cristina Tohme, Joseph M. Verdier, Valérie

We evaluated cassava bacterial blight (CBB) infection in an pair-cross population of 150 individuals derived from an intra-specific cross between two non-inbred cassava (Manihot esculenta Crantz) lines. The replicated trials were carried out in the field under high disease pressure over two conse...

Enlace original: https://cgspace.cgiar.org/handle/10568/43988

Investigación en Agricultura
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Jorge, V ,  Fregene, Martin A. ,  Velez, C.M. ,  Duque E., Myriam Cristina ,  Tohme, Joseph M. ,  Verdier, Valérie ,  [QTL analysis of field resistance to Xanthomonas axonopodis pv. manihotis in cassava] ,  QTL analysis of field resistance to Xanthomonas axonopodis pv. manihotis in cassava
Journal Article 1998

Autor: Verdier, Valérie Mosquera Cifuentes, Gloria Maria Assigbétsé, K.

Cassava bacterial blight, caused by Xanthomonas axonopodis pv. manihotis, is of significant concern wherever cassava is grown. The movement of infected, asymptomatic stems is a major means of pathogen dispersal. A reliable and sensitive diagnostic procedure is necessary for the safe movement of c...

Enlace original: https://cgspace.cgiar.org/handle/10568/42726

Investigación en Agricultura
PCR
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Verdier, Valérie ,  Mosquera Cifuentes, Gloria Maria ,  Assigbétsé, K. ,  [Detection of the cassava bacterial blight pathogen, Xanthomonas axonopodis pv. manihotis, by polymerase chain reaction] ,  Detection of the cassava bacterial blight pathogen, Xanthomonas axonopodis pv. manihotis, by polymerase chain reaction
Conference Proceedings 2018-08

Autor: Bossa Castro, Ana M. Tekete, Cheick Raghavan, Chitra Delorean, Emily E. Dereeper, Alexis Verdier, Valérie Dagno, Karim Koita, Ousmane Mosquera Cifuentes, Gloria Maria Leung, Hei Leach, Jan E.

Quantitative trait loci (QTL) that confer broad-spectrum resistance (BSR) have been elusive targets of crop breeding programs. Bacterial leaf streak (BLS) and bacterial blight (BB), caused by Xanthomonas oryzae pv. oryzicola (Xoc) and Xanthomonas oryzae pv. oryzae (Xoo), respectively, are respons...

Enlace original: https://cgspace.cgiar.org/handle/10568/98290

Investigación en Agricultura
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Bossa Castro, Ana M. ,  Tekete, Cheick ,  Raghavan, Chitra ,  Delorean, Emily E. ,  Dereeper, Alexis ,  Verdier, Valérie ,  Dagno, Karim ,  Koita, Ousmane ,  Mosquera Cifuentes, Gloria Maria ,  Leung, Hei ,  Leach, Jan E. ,  [Broad-spectrum resistance and susceptibility to bacterial blight and bacterial leaf streak of rice] ,  Broad-spectrum resistance and susceptibility to bacterial blight and bacterial leaf streak of rice
Conference Proceedings 2018-07

Autor: Leach, Jan E. Bossa Castro, Ana M. Huerta, Alejandra I. Delorean, Emily E. Raghavan, Chitra Tekete, Cheick Dereeper, Alexis Tonnessen, Bradley W. Koita, Ousmane Mosquera Cifuentes, Gloria Maria Leung, Hei Verdier, Valérie

Disease resistance is the foundation for managing many plant diseases, because resistant varieties have the strongest impact with minimal environmental effects or cost. Consequently, sources of broad-spectrum resistance (BSR), or resistance that is effective against multiple and/or diverse pathog...

Enlace original: https://cgspace.cgiar.org/handle/10568/98289

Investigación en Agricultura
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Leach, Jan E. ,  Bossa Castro, Ana M. ,  Huerta, Alejandra I. ,  Delorean, Emily E. ,  Raghavan, Chitra ,  Tekete, Cheick ,  Dereeper, Alexis ,  Tonnessen, Bradley W. ,  Koita, Ousmane ,  Mosquera Cifuentes, Gloria Maria ,  Leung, Hei ,  Verdier, Valérie ,  [Quantitative resistance to bacterial pathogens of rice] ,  Quantitative resistance to bacterial pathogens of rice
Journal Article 2010

Autor: Soto Suárez, M. González, C. Piegu, B Tohme, Joseph M. Verdier, Valérie

Xanthomonas oryzae pathovar oryzae (Xoo) and X. oryzae pv. oryzicola (Xoc) cause bacterial diseases in rice: leaf blight and leaf streak, respectively. Although both the Asian and the African strains of Xoo induce similar symptoms, they are genetically different, with the African Xoo strains bein...

Enlace original: https://cgspace.cgiar.org/handle/10568/42914

Investigación en Agricultura
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Soto Suárez, M. ,  González, C. ,  Piegu, B ,  Tohme, Joseph M. ,  Verdier, Valérie ,  [Genomic comparison between Xanthomonas oryzae pv.oryzae and Xanthomonas oryzae pv.oryzicola,usingsuppression-subtractive hybridization] ,  Genomic comparison between Xanthomonas oryzae pv.oryzae and Xanthomonas oryzae pv.oryzicola,usingsuppression-subtractive hybridization
Journal Article 1997

Autor: Verdier, Valérie Restrepo, Silvia

Cassava is an important crop in Colombia grown on approximately 196 000 hectares of land. One of the limiting factors for production is Xanthomonas axonopodis pv. manihotis (Xam). The geographical distribution of the disease and its incidence are described for different ecological zones of Colomb...

Enlace original: https://cgspace.cgiar.org/handle/10568/88861

Investigación en Agricultura
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Verdier, Valérie ,  Restrepo, Silvia ,  [Répartition géographique de la bactériose vasculaire du manioc en Colombie et variabilité de l`agent pathogène] ,  Répartition géographique de la bactériose vasculaire du manioc en Colombie et variabilité de l`agent pathogène

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