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dc.contributor.authorSegatto, Ana Lúcia Anversapt_BR
dc.contributor.authorKortmann, Maikel Reckpt_BR
dc.contributor.authorTurchetto, Carolinept_BR
dc.contributor.authorFreitas, Loreta Brandão dept_BR
dc.date.accessioned2021-07-30T04:36:48Zpt_BR
dc.date.issued2017pt_BR
dc.identifier.issn1471-2148pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/224826pt_BR
dc.description.abstractBackground: The classification of closely related plants is not straightforward. These morphologically similar taxa frequently maintain their inter-hybridization potential and share ancestral polymorphisms as a consequence of their recent divergence. Under the biological species concept, they may thus not be considered separate species. The Petunia integrifolia complex is especially interesting because, in addition to the features mentioned above, its taxa share a pollinator, and their geographical ranges show multiple overlaps. Here, we combined plastid genome sequences, nuclear microsatellites, AFLP markers, ecological niche modelling, and bioregions analysis to investigate the genetic variability between the different taxa of the P. integrifolia complex in a comprehensive sample covering the entire geographical range of the complex. Results: Results from molecular markers did not fully align with the current taxonomic classification. Niche modelling and bioregions analyses revealed that taxa were associated with different ecological constraints, indicating that the habitat plays an important role in preserving species boundaries. For three taxa, our analyses showed a mostly conserved, non-overlapping geographical distribution over time. However, for two taxa, niche modelling found an overlapping distribution over time; these taxa were also associated with the same bioregions. Conclusions: cpDNA markers were better able to discriminate between Petunia taxa than SSRs and AFLPs. Overall, our results suggest that the P. integrifolia complex represents a continuum of individuals from distant and historically isolated populations, which share some morphological traits, but are established in four different evolutionary lineages.en
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofBMC Evolutionary Biology. London. Vol. 17, no. 234, (2017), p. 1-14pt_BR
dc.rightsOpen Accessen
dc.subjectRadiaçãopt_BR
dc.subjectAdaptive radiationen
dc.subjectHybridizationen
dc.subjectHibridizaçãopt_BR
dc.subjectPampasen
dc.subjectSolanaceaept_BR
dc.subjectPhylogeographyen
dc.subjectSolanaceaeen
dc.titleMultiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complexpt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001082479pt_BR
dc.type.originEstrangeiropt_BR


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