Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations
Studies of the North American columbines (Aquilegia, Ranunculaceae) have supported the view that adaptive radiations in animal-pollinated plants proceed through pollinator specialisation and floral differentiation. However, although the diversity of pollinators and floral morphology is much lower in...
| Autores: | , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2010 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/36746 |
| Acceso en línea: | http://hdl.handle.net/10261/36746 |
| Access Level: | acceso abierto |
| Palabra clave: | Adaptive radiation Allopatric speciation Columbines Habitat specialisation Historical contingency Pollination syndromes Sympatric speciation |
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Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiationsBastida, Jesús M.Alcántara, Julio M.Rey, Pedro J.Vargas, PabloHerrera, Carlos M.Adaptive radiationAllopatric speciationColumbinesHabitat specialisationHistorical contingencyPollination syndromesSympatric speciationStudies of the North American columbines (Aquilegia, Ranunculaceae) have supported the view that adaptive radiations in animal-pollinated plants proceed through pollinator specialisation and floral differentiation. However, although the diversity of pollinators and floral morphology is much lower in Europe and Asia than in North America, the number of columbine species is similar in the three continents. This supports the hypothesis that habitat and pollinator specialisation have contributed differently to the radiation of columbines in different continents. To establish the basic background to test this hypothesis, we expanded the molecular phylog- eny of the genus to include a representative set of species from each continent. Our results suggest that the diversity of the genus is the result of two independent events of radiation, one involving Asiatic and North American species and the other involving Asiatic and European species. The ancestors of both lineages probably occupied the mountains of south-central Siberia. North American and European columbines are monophyletic within their respective lineages. The genus originated between 6.18 and 6.57 million years (Myr) ago, with the main pulses of diversification starting around 3 Myr ago both in Europe (1.25–3.96 Myr ago) and North America (1.42–5.01 Myr ago). The type of habitat occupied shifted more often in the Euroasiatic lineage, while pollination vectors shifted more often in the Asiatic-North American lineage. Moreover, while allopatric speciation predominated in the European lineage, sympatric speciation acted in the North American one. In conclusion, the radiation of columbines in Europe and North America involved similar rates of diversification and took place simultaneously and inde- pendently. However, the ecological drivers of radiation were different: geographic isolation and shifts in habitat use were more important in Europe while reproductive isolation linked to shifts in pollinator specialisation additionally acted in North AmericaPeer reviewedSpringer Nature201120112010info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/36746reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://www.springerlink.com/content/b371138m81838534/fulltext.pdfinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/367462026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| title |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| spellingShingle |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations Bastida, Jesús M. Adaptive radiation Allopatric speciation Columbines Habitat specialisation Historical contingency Pollination syndromes Sympatric speciation |
| title_short |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| title_full |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| title_fullStr |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| title_full_unstemmed |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| title_sort |
Extended phylogeny of Aquilegia: the biogeographical and ecological patterns of two simultaneous but contrasting radiations |
| dc.creator.none.fl_str_mv |
Bastida, Jesús M. Alcántara, Julio M. Rey, Pedro J. Vargas, Pablo Herrera, Carlos M. |
| author |
Bastida, Jesús M. |
| author_facet |
Bastida, Jesús M. Alcántara, Julio M. Rey, Pedro J. Vargas, Pablo Herrera, Carlos M. |
| author_role |
author |
| author2 |
Alcántara, Julio M. Rey, Pedro J. Vargas, Pablo Herrera, Carlos M. |
| author2_role |
author author author author |
| dc.subject.none.fl_str_mv |
Adaptive radiation Allopatric speciation Columbines Habitat specialisation Historical contingency Pollination syndromes Sympatric speciation |
| topic |
Adaptive radiation Allopatric speciation Columbines Habitat specialisation Historical contingency Pollination syndromes Sympatric speciation |
| description |
Studies of the North American columbines (Aquilegia, Ranunculaceae) have supported the view that adaptive radiations in animal-pollinated plants proceed through pollinator specialisation and floral differentiation. However, although the diversity of pollinators and floral morphology is much lower in Europe and Asia than in North America, the number of columbine species is similar in the three continents. This supports the hypothesis that habitat and pollinator specialisation have contributed differently to the radiation of columbines in different continents. To establish the basic background to test this hypothesis, we expanded the molecular phylog- eny of the genus to include a representative set of species from each continent. Our results suggest that the diversity of the genus is the result of two independent events of radiation, one involving Asiatic and North American species and the other involving Asiatic and European species. The ancestors of both lineages probably occupied the mountains of south-central Siberia. North American and European columbines are monophyletic within their respective lineages. The genus originated between 6.18 and 6.57 million years (Myr) ago, with the main pulses of diversification starting around 3 Myr ago both in Europe (1.25–3.96 Myr ago) and North America (1.42–5.01 Myr ago). The type of habitat occupied shifted more often in the Euroasiatic lineage, while pollination vectors shifted more often in the Asiatic-North American lineage. Moreover, while allopatric speciation predominated in the European lineage, sympatric speciation acted in the North American one. In conclusion, the radiation of columbines in Europe and North America involved similar rates of diversification and took place simultaneously and inde- pendently. However, the ecological drivers of radiation were different: geographic isolation and shifts in habitat use were more important in Europe while reproductive isolation linked to shifts in pollinator specialisation additionally acted in North America |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010 2011 2011 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 |
| format |
article |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/36746 |
| url |
http://hdl.handle.net/10261/36746 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
http://www.springerlink.com/content/b371138m81838534/fulltext.pdf |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Springer Nature |
| publisher.none.fl_str_mv |
Springer Nature |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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1869417063951368192 |
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15.812429 |