Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/224826 |
Resumo: | Background: 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. |
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Segatto, Ana Lúcia AnversaKortmann, Maikel ReckTurchetto, CarolineFreitas, Loreta Brandão de2021-07-30T04:36:48Z20171471-2148http://hdl.handle.net/10183/224826001082479Background: 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.application/pdfengBMC Evolutionary Biology. London. Vol. 17, no. 234, (2017), p. 1-14RadiaçãoHibridizaçãoSolanaceaeAdaptive radiationHybridizationPampasPhylogeographySolanaceaeMultiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complexEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001082479.pdf.txt001082479.pdf.txtExtracted Texttext/plain76708http://www.lume.ufrgs.br/bitstream/10183/224826/2/001082479.pdf.txtb7d7c604e5811d19f94c717521da1335MD52ORIGINAL001082479.pdfTexto completo (inglês)application/pdf1928664http://www.lume.ufrgs.br/bitstream/10183/224826/1/001082479.pdf3c2950b02b156391997a2922095d16d3MD5110183/2248262021-08-18 04:45:31.878761oai:www.lume.ufrgs.br:10183/224826Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-08-18T07:45:31Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
title |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
spellingShingle |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex Segatto, Ana Lúcia Anversa Radiação Hibridização Solanaceae Adaptive radiation Hybridization Pampas Phylogeography Solanaceae |
title_short |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
title_full |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
title_fullStr |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
title_full_unstemmed |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
title_sort |
Multiple markers, niche modelling, and bioregions analyses to evaluate the genetic diversity of a plant species complex |
author |
Segatto, Ana Lúcia Anversa |
author_facet |
Segatto, Ana Lúcia Anversa Kortmann, Maikel Reck Turchetto, Caroline Freitas, Loreta Brandão de |
author_role |
author |
author2 |
Kortmann, Maikel Reck Turchetto, Caroline Freitas, Loreta Brandão de |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Segatto, Ana Lúcia Anversa Kortmann, Maikel Reck Turchetto, Caroline Freitas, Loreta Brandão de |
dc.subject.por.fl_str_mv |
Radiação Hibridização Solanaceae |
topic |
Radiação Hibridização Solanaceae Adaptive radiation Hybridization Pampas Phylogeography Solanaceae |
dc.subject.eng.fl_str_mv |
Adaptive radiation Hybridization Pampas Phylogeography Solanaceae |
description |
Background: 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. |
publishDate |
2017 |
dc.date.issued.fl_str_mv |
2017 |
dc.date.accessioned.fl_str_mv |
2021-07-30T04:36:48Z |
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Estrangeiro info:eu-repo/semantics/article |
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1471-2148 |
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001082479 |
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http://hdl.handle.net/10183/224826 |
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eng |
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BMC Evolutionary Biology. London. Vol. 17, no. 234, (2017), p. 1-14 |
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info:eu-repo/semantics/openAccess |
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