Contrasting genetic structure between two begomoviruses infecting the same leguminous hosts

dc.creatorXavier, César Augusto Diniz
dc.creatorPereira, Hermano Monteiro de Barros
dc.creatorLima, Gaus Silvestre de Andrade
dc.creatorAssunção, Iraı́ldes Pereira
dc.creatorMizubuti, Eduardo Seiti Gomide
dc.creatorDuffy, Siobain
dc.creatorZerbini, Francisco Murilo
dc.creatorRamos Sobrinho, Roberto
dc.date2017-11-08T17:32:15Z
dc.date2017-11-08T17:32:15Z
dc.date2014-07-11
dc.date.accessioned2023-09-27T21:14:55Z
dc.date.available2023-09-27T21:14:55Z
dc.identifier1465-2099
dc.identifierhttp://dx.doi.org/10.1099/vir.0.067009-0
dc.identifierhttp://www.locus.ufv.br/handle/123456789/12933
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8957305
dc.descriptionBegomoviruses are whitefly-transmitted, ssDNA plant viruses and are among the most damaging pathogens causing epidemics in economically important crops worldwide. Wild/non-cultivated plants play a crucial epidemiological role, acting as begomovirus reservoirs and as ‘mixing vessels’ where recombination can occur. Previous work suggests a higher degree of genetic variability in begomovirus populations from non-cultivated hosts compared with cultivated hosts. To assess this supposed host effect on the genetic variability of begomovirus populations, cultivated (common bean, Phaseolus vulgaris, and lima bean, Phaseolus lunatus) and non-cultivated (Macroptilium lathyroides) legume hosts were sampled from two regions of Brazil. A total of 212 full-length DNA-A genome segments were sequenced from samples collected between 2005 and 2012, and populations of the begomoviruses Bean golden mosaic virus (BGMV) and Macroptilium yellow spot virus (MaYSV) were obtained. We found, for each begomovirus species, similar genetic variation between populations infecting cultivated and non-cultivated hosts, indicating that the presumed genetic variability of the host did not a priori affect viral variability. We observed a higher degree of genetic variation in isolates from MaYSV populations than BGMV populations, which was explained by numerous recombination events in MaYSV. MaYSV and BGMV showed distinct distributions of genetic variation, with the BGMV population (but not MaYSV) being structured by both host and geography.
dc.formatpdf
dc.formatapplication/pdf
dc.languageeng
dc.publisherJournal of General Virology
dc.relationVolume 95, Issue 11, p. 2540–2552, November 2014
dc.rightsOpen Access
dc.subjectGenetic structure
dc.subjectLeguminous hosts
dc.titleContrasting genetic structure between two begomoviruses infecting the same leguminous hosts
dc.typeArtigo


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