Phylogeography and molecular evolution of potato virus Y

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dc.contributor.authorCuevas, Jose M.en_ZA
dc.contributor.authorDelaunay, Agnesen_ZA
dc.contributor.authorVisser, Johan C.en_ZA
dc.contributor.authorBellstedt, Dirk U.en_ZA
dc.contributor.authorJacquot, Emmanuelen_ZA
dc.contributor.authorElena, Santiago F.en_ZA
dc.date.accessioned2012-06-06T08:02:29Z
dc.date.available2012-06-06T08:02:29Z
dc.date.issued2012-05-24
dc.descriptionCITATION: Cuevas, J. M. et al. 2012. Phylogeography and molecular evolution of potato virus Y. PLoS ONE, 7(5): e37853, doi:10.1371/journal.pone.0037853.
dc.descriptionThe original publication is available at http://journals.plos.org/plosone
dc.description.abstractPotato virus Y (PVY) is an important plant pathogen, whose host range includes economically important crops such as potato, tobacco, tomato, and pepper. PVY presents three main strains (PVY O, PVY N and PVY C) and several recombinant forms. PVY has a worldwide distribution, yet the mechanisms that promote and maintain its population structure and genetic diversity are still unclear. In this study, we used a pool of 77 complete PVY genomes from isolates collected worldwide. After removing the effect of recombination in our data set, we used Bayesian techniques to study the influence of geography and host species in both PVY population structure and dynamics. We have also performed selection and covariation analyses to identify evolutionarily relevant amino acid residues. Our results show that both geographic and host-driven adaptations explain PVY diversification. Furthermore, purifying selection is the main force driving PVY evolution, although some indications of positive selection accounted for the diversification of the different strains. Interestingly, the analysis of P3N-PIPO, a recently described gene in potyviruses, seems to show a variable length among the isolates analyzed, and this variability is explained, in part, by host-driven adaptation.
dc.description.urihttp://journals.plos.org/plosone/article?id=10.1371/journal.pone.0037853
dc.description.versionPublisher's version
dc.format.extent10 pages
dc.identifier.citationCuevas, J. M. et al. 2012. Phylogeography and molecular evolution of potato virus Y. PLoS ONE, 7(5): e37853, doi:10.1371/journal.pone.0037853.
dc.identifier.issn1932-6203 (online)
dc.identifier.otherdoi:10.1371/journal.pone.0037853
dc.identifier.urihttp://hdl.handle.net/10019.1/21337
dc.language.isoen
dc.publisherPublic Library of Science
dc.rights.holderAuthors retain copyright
dc.subjectPotato virus Yen_ZA
dc.subjectPotatoes -- Diseases and pestsen_ZA
dc.subjectVirus diseases of plantsen_ZA
dc.titlePhylogeography and molecular evolution of potato virus Yen_ZA
dc.typeArticle
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