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dc.contributor.authorSimon, Luizept_BR
dc.contributor.authorSoares, Luana Sousapt_BR
dc.contributor.authorFreitas, Loreta Brandão dept_BR
dc.date.accessioned2024-04-12T06:19:51Zpt_BR
dc.date.issued2023pt_BR
dc.identifier.issn1415-4757pt_BR
dc.identifier.urihttp://hdl.handle.net/10183/274669pt_BR
dc.description.abstractGenetic polymorphism sharing between closely related and sympatric plant species could result from common ancestry, ancient or recent hybridization. Here we analyzed four Petunia species from the subtropical highland grasslands in southern South America based on nuclear diversity to disentangle the causes of high polymorphism sharing between them. We genotyped microsatellite loci, employed population genetic methods to estimate variability, species limits, and ancient and recent gene flow, and assigned individuals to genetic and taxonomic groups. Finally, we modeled evolutionary processes to determine the impact of Quaternary climate changes on species phylogenetic relationships. Our results indicated that genetic diversity was strongly influenced by expansion and habitat fragmentation during the Quaternary cycles. The extensive polymorphism sharing is mainly due to species’ common ancestry, and we did not discard ancient hybridization. Nowadays, niche differentiation is the primary driver for maintaining genetic and morphological limits between the four analysed Petunia species and there is no recent gene flow between themen
dc.format.mimetypeapplication/pdfpt_BR
dc.language.isoengpt_BR
dc.relation.ispartofGenetics and molecular biology. Ribeirão Preto, SP. Vol. 46, no. 3, suppl. 1 (2023), e20230159, 9 p.pt_BR
dc.rightsOpen Accessen
dc.subjectSubtropical highland grasslanden
dc.subjectPetúniapt_BR
dc.subjectSolanaceaept_BR
dc.subjectDiversidade genéticapt_BR
dc.subjectEspeciaçãopt_BR
dc.titleDisentangling the causes of high polymorphism sharing in sympatric Petunia species from subtropical highland grasslands: insights from nuclear diversitypt_BR
dc.typeArtigo de periódicopt_BR
dc.identifier.nrb001199718pt_BR
dc.type.originNacionalpt_BR


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