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dc.creatorNunney, Leonard
dc.creatorYuan, Xiaoli
dc.creatorBromley, Robin
dc.creatorHartung, John
dc.creatorStouthamer, Richard
dc.creatorMoreira Carmona, Lisela
dc.creatorMontero Astúa, Mauricio
dc.creatorOrtiz Arias, Beatriz
dc.descriptionProyecto 801-B0-502es_ES
dc.description.abstractInvasive diseases present an increasing problem worldwide; however, genomic techniques are now available to investigate the timing and geographical origin of such introductions. We employed genomic techniques to demonstrate that the bacterial pathogen causing Pierce’s disease of grapevine (PD) is not native to the US as previously assumed, but descended from a single genotype introduced from Central America. PD has posed a serious threat to the US wine industry ever since its first outbreak in Anaheim, California in the 1880s and continues to inhibit grape cultivation in a large area of the country. It is caused by infection of xylem vessels by the bacterium Xylella fastidiosa subsp. fastidiosa, a genetically distinct subspecies at least 15,000 years old. We present five independent kinds of evidence that strongly support our invasion hypothesis: 1) a genome-wide lack of genetic variability in X. fastidiosa subsp. fastidiosa found in the US, consistent with a recent common ancestor; 2) evidence for historical allopatry of the North American subspecies X. fastidiosa subsp. Multiplex and X. fastidiosa subsp. fastidiosa; 3) evidence that X. fastidiosa subsp. fastidiosa evolved in a more tropical climate than X. fastidiosa subsp. multiplex; 4) much greater genetic variability in the proposed source population in Central America, variation within which the US genotypes are phylogenetically nested; and 5) the circumstantial evidence of importation of known hosts (coffee plants) from Central America directly into southern California just prior to the first known outbreak of the disease. The lack of genetic variation in X. fastidiosa subsp. fastidiosa in the US suggests that preventing additional introductions is important since new genetic variation may undermine PD control measures, or may lead to infection of other crop plants through the creation of novel genotypes via inter-subspecific recombination. In general, geographically mixing of previously isolated subspecies should be avoided.es_ES
dc.description.sponsorshipUniversidad de Costa Rica/[801-B0-502]/UCR/Costa Ricaes_ES
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 Internacional*
dc.sourcePLoS ONE, vol.5(11), pp. 5-9.es_ES
dc.subjectXylella fastidiosaes_ES
dc.subjectStrain typees_ES
dc.subjectInvasive diseaseses_ES
dc.subject581.785.7 Parasitismoes_ES
dc.titlePopulation Genomic Analysis of a Bacterial Plant Pathogen: Novel Insight into the Origin of Pierce’s Disease of Grapevine in the U.S.es_ES
dc.typeartículo científico
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Biología Celular y Molecular (CIBCM)es_ES

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Attribution-NonCommercial-NoDerivatives 4.0 Internacional
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 Internacional