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.
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Duque E., Myriam Cristina
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Tohme, Joseph M.
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Verdier, Valérie
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[AFLP fingerprinting : An efficient technique for detecting genetic variation of Xanthomonas axonopodis pv. manihotis]
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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.
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Restrepo, S.
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Duque E., Myriam Cristina
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Fregene, Martin A.
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Bonierbale, Merideth W.
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Verdier, Valérie
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[AFLP assessment of genetic variability in cassava accessions (Manihot esculenta) resistant and susceptible to the cassava bacterial blight (CBB)]
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AFLP assessment of genetic variability in cassava accessions (Manihot esculenta) resistant and susceptible to the cassava bacterial blight (CBB)
Amplified fragment length polymophism was assessed in 20 land races and nine elite lines of cassava from Africa, resistant and susceptible to the cassava mosaic disease (CMD). Eleven accessions from a representative core collection from Latin America, previously studied by AFLPs, were included as...
Fregene, Martin A.
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Bernal, A.
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Duque E., Myriam Cristina
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Dixon, Alfred G.O.
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Tohme, Joseph M.
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[AFLP analysis of African cassava (Manihot esculenta Crantz) germplasm resistant to the cassava mosaic disease (CMD)]
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AFLP analysis of African cassava (Manihot esculenta Crantz) germplasm resistant to the cassava mosaic disease (CMD)
Random amplified polymorphic DNA (RAPD) markers were used for assessing genetic diversity and its structure in a collection of the drought-tolerant, tropical multipurpose shrub legume Flemingia macrophylla (Willd.) Merrill. The species is especially suited to low-input smallholder production syst...
Andersson, Meike S.
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Peters, Michael
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Schultze-Kraft, Rainer
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Gallego Sánchez, Gerardo J.
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Duque E., Myriam Cristina
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[Molecular characterization of a collection of the tropical multipurpose shrub legume Flemingia macrophylla]
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Molecular characterization of a collection of the tropical multipurpose shrub legume Flemingia macrophylla
Using AFLPs, 71 peppers (Capsicum) accessions from the species C. chinense Jacq., C. baccatum L., C. annuum L. and C. frutescens L. from indigenous communities of the Amazon Department (Colombia) were studied to assess the genetic diversity of the collections, and delineate species gene groups. T...
Toquica, SP
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Rodríguez, F.
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Martínez, E.
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Duque E., Myriam Cristina
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Tohme, Joseph M.
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[Molecular characterization by AFLPs of Capsicum germplasm from the Amazon department in Colombia, characterization by AFLPs of Capsicum]
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Molecular characterization by AFLPs of Capsicum germplasm from the Amazon department in Colombia, characterization by AFLPs of Capsicum
González Torres, Rosa Inés
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Suárez Baron, Harold
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Martínez Garay, Carlos
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Duque E., Myriam Cristina
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Debouck, Daniel G.
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Tohme, Joseph M.
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[Determination of gene flow events in natural "wild-weedy-cultivated" complexes in genepools of Phaseolus lunatus L]
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Determination of gene flow events in natural "wild-weedy-cultivated" complexes in genepools of Phaseolus lunatus L
Fuentes, JL
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Correa Victoria, Fernando J.
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Escobar R, F.
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Prado Patiño, G.A.
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Aricapa, María Girlena
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Duque E., Myriam Cristina
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Tohme, Joseph M.
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[Tagging Pi-l(t) gene for blast resistance in rice via linkage to microsatellite markers]
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Tagging Pi-l(t) gene for blast resistance in rice via linkage to microsatellite markers
González Torres, Rosa Inés
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Gaitán Solís, Eliana
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Duque E., Myriam Cristina
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Toro Chica, Orlando
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Debouck, Daniel G.
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Tohme, Joseph M.
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[Estimation of gene flow on Phaseolus vulgaris L. using molecular markers : Microsatellites and polymorphisms at chloroplast DNA]
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Estimation of gene flow on Phaseolus vulgaris L. using molecular markers : Microsatellites and polymorphisms at chloroplast DNA
Microsatellite amplification was performed on cassava (Manihot esculenta) and six other different species (all wild) of the Manihot genus. We used ten pairs of microsatellite primers previously developed from cassava, detecting 124 alleles in a sample of 121 accessions of the seven species. The n...
Roa, AC
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Chavarriaga Aguirre, Paul
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Duque E., Myriam Cristina
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Maya, M.M.
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Bonierbale, Merideth W.
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Iglesias, C.A.
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Tohme, Joseph M.
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[Cross-species amplification of cassava (Manihot esculenta) (Euphorbiaceae) microsatellites: Allelic polymorphism and degree of relationship]
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Cross-species amplification of cassava (Manihot esculenta) (Euphorbiaceae) microsatellites: Allelic polymorphism and degree of relationship
More than 60% of common bean production worldwide is derived from cultivars of Middle American origin. Understanding the diversity of these will facilitate their use in genetic improvement. The objective of this study was to analyze a collection of 269 landraces of common bean (Phaseolus vulgaris...
Beebe, Stephen E.
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Skroch, PW
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Tohme, Joseph M.
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Duque E., Myriam Cristina
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Pedraza García, Fabio
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Nienhuis, James
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[Structure of genetic diversity among common bean landraces of middle American origin based on correspondence analysis of RAPD]
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Structure of genetic diversity among common bean landraces of middle American origin based on correspondence analysis of RAPD