Genetic and pathogenic variation of Xanthomonas axonopodis pv. manihotis in Venezuela

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cg.coverage.countryVenezuela
cg.coverage.iso3166-alpha2VE
cg.coverage.regionSouth America
cg.identifier.doihttps://doi.org/10.1046/j.1365-3059.1998.00271.xen
cg.isijournalISI Journalen
cg.issn1365-3059en
cg.issue5en
cg.journalPlant Pathologyen
cg.reviewStatusPeer Reviewen
cg.subject.ciatCASSAVAen
cg.subject.ciatPESTS AND DISEASESen
cg.volume47en
dc.contributor.authorVerdier, Valerie M.en
dc.contributor.authorRestrepo, S.en
dc.contributor.authorMosquera Cifuentes, Gloria Mariaen
dc.contributor.authorDuque E., Myriam Cristinaen
dc.contributor.authorGerstl, Aen
dc.contributor.authorLaberry Saavedra, Rafael Albertoen
dc.date.accessioned2014-09-24T08:42:12Zen
dc.date.available2014-09-24T08:42:12Zen
dc.identifier.urihttps://hdl.handle.net/10568/43482
dc.titleGenetic and pathogenic variation of Xanthomonas axonopodis pv. manihotis in Venezuelaen
dcterms.abstractDNA 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 is a major crop. DNA polymorphism was assessed by RFLP analysis, using an Xam plasmidic DNA sequence (pthB) as a probe to determine the relatedness of 91 Venezuelan isolates. A high degree of polymorphism existed among the isolates, whether collected from the same or different fields. Based on a multiple correspondence analysis, the Xam population was distributed into eight clusters and no correlation was observed between genetic diversity and geographic origin. One set of haplotype strains representing the range of variability detected in Venezuela was further characterized by another RFLP analysis using two repetitive genomic probes (pBS6 and pBS8) to establish the usefulness of these probes and their complementarity with the pthB probe. Variation for virulence was observed in the Xam Venezuelan collection by inoculating a set of cassava cultivars with 28 isolates of the pathogen, each representing a haplotype. Understanding the genetic and pathogenic variation in the pathogen population is useful for designing cassava bacterial blight management strategies.en
dcterms.accessRightsLimited Access
dcterms.available2001-12-26
dcterms.extentpp. 601-608en
dcterms.issued1998-10
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherWileyen
dcterms.subjectmanihot esculentaen
dcterms.subjectxanthomonasen
dcterms.subjectpathogenicityen
dcterms.subjectrflpen
dcterms.subjectdnaen
dcterms.subjectmicrobiological analysisen
dcterms.subjectpatogenicidaden
dcterms.subjectadnen
dcterms.subjectanálisis microbiológicoen
dcterms.typeJournal Article

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