Publicação
Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae)
| Resumo: | Whereas examples of insular speciation within the endemic-rich Macaronesian hotspot flora have been documented, the phylogeography of recently evolved plants in the region has received little attention. The Macaronesian red fescues constitute a narrow and recent radiation of four closely related diploid species distributed in the Canary Islands (F. agustinii), Madeira (F. jubata), and the Azores (F. francoi and F. petraea), with a single extant relative distributed in mainland southwest Europe (F. rivularis). Bayesian structure and priority consensus tree approaches and population spatial correla tions between genetic, geographical, and dispersal distances were used to elucidate the phylogeographical patterns of these grasses. Independent versus related origins and dispersal versus isolation by distance (IBD) hypotheses were tested to explain the genetic differentiation of species and populations, respectively. Genetic structure was found to be geographi cally distributed among the archipelagos and the islands endemics. The high number of shared AFLP fragments in all four species suggests a recent single origin from a continental Pliocene ancestor. However, the strong allelic structure detected among the Canarian, Madeiran, and Azorean endemics and the significant standardized residual values obtained from structured Bayesian analysis for pairwise related origin hypotheses strongly supported the existence of three independent continental-oceanic colonization events. The Canarian F. agustinii, the Madeiran F. jubata, and the two sister F. francoi and F. petraea Azorean species likely evolved from different continental founders in their respective archipelagos. Despite the short span of time elapsed since colonization, the two sympatric Azorean species probably diverged in situ, following eco logical adaptation, from a common ancestor that arrived from the near mainland. Simple dispersal hypotheses explained most of the genetic variation at the species level better than IBD models. The optimal dispersal model for F. agustinii was a bidirectional centripetal stepping-stone colonization pattern, an eastern-to-western volcanism-associated dispersion was fa vored for F. francoi, whereas for the recently derived F. petraea a counterintuitive direction of colonization (west-to-east) was suggested. The population-based phylogeographical trends deduced from our study could be used as predictive models for other Macaronesian plant endemics with similar distribution areas and dispersal abilities. [Bayesian genetic analyses; colonization of oceanic islands; dispersal models; Festuca sect. Aulaxyper; Macaronesia; phylogeography.] |
|---|---|
| Autores principais: | Díaz-Pérez, Antonio |
| Outros Autores: | Sequeira, Miguel; Santos-Guerra, Arnoldo; Catalán, Pilar |
| Assunto: | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| Ano: | 2008 |
| País: | Portugal |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | Universidade da Madeira |
| Idioma: | inglês |
| Origem: | DigitUMa - Repositório da Universidade da Madeira |
| _version_ | 1868287209697705984 |
|---|---|
| author | Díaz-Pérez, Antonio |
| author2 | Sequeira, Miguel Santos-Guerra, Arnoldo Catalán, Pilar |
| author2_role | author author author |
| author_facet | Díaz-Pérez, Antonio Sequeira, Miguel Santos-Guerra, Arnoldo Catalán, Pilar |
| author_role | author |
| contributor_name_str_mv | DigitUMa |
| country_str | PT |
| creators_json_txt | [{\"Person.name\":\"Díaz-Pérez, Antonio\"},{\"Person.name\":\"Sequeira, Miguel\",\"Person.identifier.orcid\":\"0000-0001-9728-465X\"},{\"Person.name\":\"Santos-Guerra, Arnoldo\"},{\"Person.name\":\"Catalán, Pilar\"}] |
| datacite.contributors.contributor.contributorName.fl_str_mv | DigitUMa |
| datacite.creators.creator.creatorName.fl_str_mv | Díaz-Pérez, Antonio Sequeira, Miguel Santos-Guerra, Arnoldo Catalán, Pilar |
| datacite.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| datacite.date.available.fl_str_mv | 2022-04-01T13:44:40Z |
| datacite.date.embargoed.fl_str_mv | 2022-04-01T13:44:40Z |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| datacite.titles.title.fl_str_mv | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| dc.contributor.none.fl_str_mv | DigitUMa |
| dc.creator.none.fl_str_mv | Díaz-Pérez, Antonio Sequeira, Miguel Santos-Guerra, Arnoldo Catalán, Pilar |
| dc.date.Accepted.fl_str_mv | 2008-01-01T00:00:00Z |
| dc.date.available.fl_str_mv | 2022-04-01T13:44:40Z |
| dc.date.embargoed.fl_str_mv | 2022-04-01T13:44:40Z |
| dc.format.none.fl_str_mv | application/pdf |
| dc.identifier.none.fl_str_mv | http://hdl.handle.net/10400.13/4216 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Oxford University Press |
| dc.rights.cclincense.fl_str_mv | http://creativecommons.org/licenses/by/4.0/ |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.subject.none.fl_str_mv | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| dc.title.fl_str_mv | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Whereas examples of insular speciation within the endemic-rich Macaronesian hotspot flora have been documented, the phylogeography of recently evolved plants in the region has received little attention. The Macaronesian red fescues constitute a narrow and recent radiation of four closely related diploid species distributed in the Canary Islands (F. agustinii), Madeira (F. jubata), and the Azores (F. francoi and F. petraea), with a single extant relative distributed in mainland southwest Europe (F. rivularis). Bayesian structure and priority consensus tree approaches and population spatial correla tions between genetic, geographical, and dispersal distances were used to elucidate the phylogeographical patterns of these grasses. Independent versus related origins and dispersal versus isolation by distance (IBD) hypotheses were tested to explain the genetic differentiation of species and populations, respectively. Genetic structure was found to be geographi cally distributed among the archipelagos and the islands endemics. The high number of shared AFLP fragments in all four species suggests a recent single origin from a continental Pliocene ancestor. However, the strong allelic structure detected among the Canarian, Madeiran, and Azorean endemics and the significant standardized residual values obtained from structured Bayesian analysis for pairwise related origin hypotheses strongly supported the existence of three independent continental-oceanic colonization events. The Canarian F. agustinii, the Madeiran F. jubata, and the two sister F. francoi and F. petraea Azorean species likely evolved from different continental founders in their respective archipelagos. Despite the short span of time elapsed since colonization, the two sympatric Azorean species probably diverged in situ, following eco logical adaptation, from a common ancestor that arrived from the near mainland. Simple dispersal hypotheses explained most of the genetic variation at the species level better than IBD models. The optimal dispersal model for F. agustinii was a bidirectional centripetal stepping-stone colonization pattern, an eastern-to-western volcanism-associated dispersion was fa vored for F. francoi, whereas for the recently derived F. petraea a counterintuitive direction of colonization (west-to-east) was suggested. The population-based phylogeographical trends deduced from our study could be used as predictive models for other Macaronesian plant endemics with similar distribution areas and dispersal abilities. [Bayesian genetic analyses; colonization of oceanic islands; dispersal models; Festuca sect. Aulaxyper; Macaronesia; phylogeography.] |
| dirty | 0 |
| eu_rights_str_mv | openAccess |
| format | article |
| fulltext.url.fl_str_mv | https://digituma.uma.pt/bitstreams/ac0d11ac-d9ae-4931-b6e5-c2b9affaf4bf/download |
| funding.funder.alternateName_str_mv | FCT |
| funding.funder.identifier_str_mv | http://doi.org/10.13039/501100001871 |
| funding.funder.name_str_mv | Fundação para a Ciência e a Tecnologia |
| funding.identifier_str_mv | POCTI/BME/39640/2001 |
| funding.name_str_mv | POCI |
| funding_str_mv | POCTI/BME/39640/2001 info:eu-repo/grantAgreement/FCT/POCI/POCTI%2FBME%2F39640%2F2001/PT |
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| identifier.url.fl_str_mv | http://hdl.handle.net/10400.13/4216 |
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| institution | Universidade da Madeira |
| instname_str | Universidade da Madeira |
| language | eng |
| network_acronym_str | digituma |
| network_name_str | DigitUMa - Repositório da Universidade da Madeira |
| oai_identifier_str | oai:digituma.uma.pt:10400.13/4216 |
| organization_str_mv | urn:organizationAcronym:digituma |
| person_str_mv | Díaz-Pérez, Antonio Sequeira, Miguel Sequeira, Miguel https://www.ciencia-id.pt/CA1C-1AC6-6346 CA1C-1AC6-6346 http://orcid.org/0000-0001-9728-465X 0000-0001-9728-465X Santos-Guerra, Arnoldo Catalán, Pilar |
| publishDate | 2008 |
| publisher.none.fl_str_mv | Oxford University Press |
| reponame_str | DigitUMa - Repositório da Universidade da Madeira |
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| spelling | engOxford University Presspt_PTWhereas examples of insular speciation within the endemic-rich Macaronesian hotspot flora have been documented, the phylogeography of recently evolved plants in the region has received little attention. The Macaronesian red fescues constitute a narrow and recent radiation of four closely related diploid species distributed in the Canary Islands (F. agustinii), Madeira (F. jubata), and the Azores (F. francoi and F. petraea), with a single extant relative distributed in mainland southwest Europe (F. rivularis). Bayesian structure and priority consensus tree approaches and population spatial correla tions between genetic, geographical, and dispersal distances were used to elucidate the phylogeographical patterns of these grasses. Independent versus related origins and dispersal versus isolation by distance (IBD) hypotheses were tested to explain the genetic differentiation of species and populations, respectively. Genetic structure was found to be geographi cally distributed among the archipelagos and the islands endemics. The high number of shared AFLP fragments in all four species suggests a recent single origin from a continental Pliocene ancestor. However, the strong allelic structure detected among the Canarian, Madeiran, and Azorean endemics and the significant standardized residual values obtained from structured Bayesian analysis for pairwise related origin hypotheses strongly supported the existence of three independent continental-oceanic colonization events. The Canarian F. agustinii, the Madeiran F. jubata, and the two sister F. francoi and F. petraea Azorean species likely evolved from different continental founders in their respective archipelagos. Despite the short span of time elapsed since colonization, the two sympatric Azorean species probably diverged in situ, following eco logical adaptation, from a common ancestor that arrived from the near mainland. Simple dispersal hypotheses explained most of the genetic variation at the species level better than IBD models. The optimal dispersal model for F. agustinii was a bidirectional centripetal stepping-stone colonization pattern, an eastern-to-western volcanism-associated dispersion was fa vored for F. francoi, whereas for the recently derived F. petraea a counterintuitive direction of colonization (west-to-east) was suggested. The population-based phylogeographical trends deduced from our study could be used as predictive models for other Macaronesian plant endemics with similar distribution areas and dispersal abilities. [Bayesian genetic analyses; colonization of oceanic islands; dispersal models; Festuca sect. Aulaxyper; Macaronesia; phylogeography.]application/pdfpt_PTMultiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae)Díaz-Pérez, AntonioPersonalSequeira, MiguelDSpacehttp://dspace.org/items/c4c52673-d265-42c0-b5bd-628a3b2f0b0bDSpacehttp://dspace.org/items/c4c52673-d265-42c0-b5bd-628a3b2f0b0bSequeiraMiguelCiência IDhttps://www.ciencia-id.ptCA1C-1AC6-6346ORCIDhttp://orcid.org0000-0001-9728-465XScopus Author IDhttps://www.scopus.com35101791200Scopus Author IDhttps://www.scopus.com57203171582Scopus Author IDhttps://www.scopus.com57964814700Santos-Guerra, ArnoldoCatalán, PilarHostingInstitutionOrganizationalDigitUMae-mailmailto:digituma@uma.ptdigituma@uma.ptDOIIsPartOf10.1080/106351508023024502022-04-01T13:44:40Z20082008-01-01T00:00:00ZHandlehttp://hdl.handle.net/10400.13/4216http://purl.org/coar/access_right/c_abf2open accessRed Fescues (Festuca L., Gramineae)MacaronesiaPhylogeographyColonization.Faculdade de Ciências da Vida6651076 bytesFundação para a Ciência e a TecnologiaEvolutionary relationships of Macaronesic Deschampsia Aveneae, Poaceae based on a morphological and molecular approaches.info:eu-repo/grantAgreement/FCT/POCI/POCTI%2FBME%2F39640%2F2001/PTPOCTI/BME/39640/2001POCICrossref Funder IDhttp://doi.org/10.13039/501100001871literaturehttp://purl.org/coar/resource_type/c_6501journal article2008http://creativecommons.org/licenses/by/4.0/http://purl.org/coar/access_right/c_abf2application/pdffulltexthttps://digituma.uma.pt/bitstreams/ac0d11ac-d9ae-4931-b6e5-c2b9affaf4bf/downloadSystematic Biology575732749 |
| spellingShingle | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) Díaz-Pérez, Antonio Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| status | SINGLETON |
| subject.fl_str_mv | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| title | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| title_full | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| title_fullStr | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| title_full_unstemmed | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| title_short | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| title_sort | Multiple colonizations, in situ speciation, and volcanism-associated stepping-stone dispersals shaped the phylogeography of the Macaronesian red fescues (Festuca L., Gramineae) |
| topic | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| topic_facet | Red Fescues (Festuca L., Gramineae) Macaronesia Phylogeography Colonization . Faculdade de Ciências da Vida |
| url | http://hdl.handle.net/10400.13/4216 |
| visible | 1 |
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