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Phylogeography and Molecular Evolution of Potato virus Y

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Phylogeography and Molecular Evolution of Potato virus Y

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dc.contributor.author Cuevas Torrijos, José Manuel es_ES
dc.contributor.author Delaunay, Agnès es_ES
dc.contributor.author Visser, Johan C. es_ES
dc.contributor.author Bellstedt, Dirk U. es_ES
dc.contributor.author Jacquot, Emmanuel es_ES
dc.contributor.author Elena Fito, Santiago F. es_ES
dc.date.accessioned 2015-06-19T10:21:24Z
dc.date.available 2015-06-19T10:21:24Z
dc.date.issued 2012 es_ES
dc.identifier.citation PLoS ONE Vol. 7 Issue 5: es_ES
dc.identifier.uri http://hdl.handle.net/10550/44583
dc.description.abstract Potato 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 (PVYO, PVYN and PVYC) 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. es_ES
dc.title Phylogeography and Molecular Evolution of Potato virus Y es_ES
dc.type journal article es_ES
dc.identifier.doi 10.1371/journal.pone.0037853 es_ES
dc.identifier.idgrec 103768 es_ES

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