Comparative phylogeography of endemic Azorean arthropods
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10400.3/4238 |
Resumo: | BACKGROUND: For a remote oceanic archipelago of up to 8 Myr age, the Azores have a comparatively low level of endemism. We present an analysis of phylogeographic patterns of endemic Azorean island arthropods aimed at testing patterns of diversification in relation to the ontogeny of the archipelago, in order to distinguish between alternative models of evolutionary dynamics on islands. We collected individuals of six species (representing Araneae, Hemiptera and Coleoptera) from 16 forest fragments from 7 islands. Using three mtDNA markers, we analysed the distribution of genetic diversity within and between islands, inferred the differentiation time-frames and investigated the inter-island migration routes and colonization patterns. RESULTS: Each species exhibited very low levels of mtDNA divergence, both within and between islands. The two oldest islands were not strongly involved in the diffusion of genetic diversity within the archipelago. The most haplotype-rich islands varied according to species but the younger, central islands contributed the most to haplotype diversity. Colonization events both in concordance with and in contradiction to an inter-island progression rule were inferred, while a non-intuitive pattern of colonization from western to eastern islands was also inferred. CONCLUSIONS: The geological development of the Azores has followed a less tidy progression compared to classic hotspot archipelagos, and this is reflected in our findings. The study species appear to have been differentiating within the Azores for <2 Myr, a fraction of the apparent life span of the archipelago, which may indicate that extinction events linked to active volcanism have played an important role. Assuming that after each extinction event, colonization was initiated from a nearby island hosting derived haplotypes, the apparent age of species diversification in the archipelago would be moved closer to the present after each extinction-recolonization cycle. Exploiting these ideas, we propose a general model for future testing. |
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Comparative phylogeography of endemic Azorean arthropodsAraneaeAzoresColeopteraColonization RoutesDiscrete PhylogeographyExtinctionHemipteraMitochondrial DNABACKGROUND: For a remote oceanic archipelago of up to 8 Myr age, the Azores have a comparatively low level of endemism. We present an analysis of phylogeographic patterns of endemic Azorean island arthropods aimed at testing patterns of diversification in relation to the ontogeny of the archipelago, in order to distinguish between alternative models of evolutionary dynamics on islands. We collected individuals of six species (representing Araneae, Hemiptera and Coleoptera) from 16 forest fragments from 7 islands. Using three mtDNA markers, we analysed the distribution of genetic diversity within and between islands, inferred the differentiation time-frames and investigated the inter-island migration routes and colonization patterns. RESULTS: Each species exhibited very low levels of mtDNA divergence, both within and between islands. The two oldest islands were not strongly involved in the diffusion of genetic diversity within the archipelago. The most haplotype-rich islands varied according to species but the younger, central islands contributed the most to haplotype diversity. Colonization events both in concordance with and in contradiction to an inter-island progression rule were inferred, while a non-intuitive pattern of colonization from western to eastern islands was also inferred. CONCLUSIONS: The geological development of the Azores has followed a less tidy progression compared to classic hotspot archipelagos, and this is reflected in our findings. The study species appear to have been differentiating within the Azores for <2 Myr, a fraction of the apparent life span of the archipelago, which may indicate that extinction events linked to active volcanism have played an important role. Assuming that after each extinction event, colonization was initiated from a nearby island hosting derived haplotypes, the apparent age of species diversification in the archipelago would be moved closer to the present after each extinction-recolonization cycle. Exploiting these ideas, we propose a general model for future testing.Fundação para a Ciência e Tecnologia (FCT); IRA - Regional Fund for Science and Technology and Pro-Emprego program of the Regional Government of the Azores.BioMed CentralRepositório da Universidade dos AçoresParmakelis, AristeidisRigal, FrançoisMourikis, ThanosBalanika, KaterinaTerzopoulou, SofiaRego, CarlaAmorim, Isabel R.Crespo, Luís C.Pereira, Fernando E. A.Triantis, Kostas A.Whittaker, Robert J.Borges, Paulo A. V.2017-06-14T11:54:06Z2015-112015-11-11T16:29:47Z2015-11-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/4238engParmakelis, A.; Rigal, F.; Mourikis, Thanos; Balanika, Katerina; Terzopoulou, S.; Rego, C.; Amorim, I.R.; Crespo, L.C.; Pereira, F.; Triantis, K.A.; Whittaker, R.J.; Borges, P.A.V. (2015). Comparative phylogeography of endemic Azorean arthropods, "BMC Evolutionary Biology", 15:250, 1-18. doi: 10.1186/s12862-015-0523-x1471-214810.1186/s12862-015-0523-xinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-12-20T14:31:36Zoai:repositorio.uac.pt:10400.3/4238Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:26:05.637895Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Comparative phylogeography of endemic Azorean arthropods |
title |
Comparative phylogeography of endemic Azorean arthropods |
spellingShingle |
Comparative phylogeography of endemic Azorean arthropods Parmakelis, Aristeidis Araneae Azores Coleoptera Colonization Routes Discrete Phylogeography Extinction Hemiptera Mitochondrial DNA |
title_short |
Comparative phylogeography of endemic Azorean arthropods |
title_full |
Comparative phylogeography of endemic Azorean arthropods |
title_fullStr |
Comparative phylogeography of endemic Azorean arthropods |
title_full_unstemmed |
Comparative phylogeography of endemic Azorean arthropods |
title_sort |
Comparative phylogeography of endemic Azorean arthropods |
author |
Parmakelis, Aristeidis |
author_facet |
Parmakelis, Aristeidis Rigal, François Mourikis, Thanos Balanika, Katerina Terzopoulou, Sofia Rego, Carla Amorim, Isabel R. Crespo, Luís C. Pereira, Fernando E. A. Triantis, Kostas A. Whittaker, Robert J. Borges, Paulo A. V. |
author_role |
author |
author2 |
Rigal, François Mourikis, Thanos Balanika, Katerina Terzopoulou, Sofia Rego, Carla Amorim, Isabel R. Crespo, Luís C. Pereira, Fernando E. A. Triantis, Kostas A. Whittaker, Robert J. Borges, Paulo A. V. |
author2_role |
author author author author author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Parmakelis, Aristeidis Rigal, François Mourikis, Thanos Balanika, Katerina Terzopoulou, Sofia Rego, Carla Amorim, Isabel R. Crespo, Luís C. Pereira, Fernando E. A. Triantis, Kostas A. Whittaker, Robert J. Borges, Paulo A. V. |
dc.subject.por.fl_str_mv |
Araneae Azores Coleoptera Colonization Routes Discrete Phylogeography Extinction Hemiptera Mitochondrial DNA |
topic |
Araneae Azores Coleoptera Colonization Routes Discrete Phylogeography Extinction Hemiptera Mitochondrial DNA |
description |
BACKGROUND: For a remote oceanic archipelago of up to 8 Myr age, the Azores have a comparatively low level of endemism. We present an analysis of phylogeographic patterns of endemic Azorean island arthropods aimed at testing patterns of diversification in relation to the ontogeny of the archipelago, in order to distinguish between alternative models of evolutionary dynamics on islands. We collected individuals of six species (representing Araneae, Hemiptera and Coleoptera) from 16 forest fragments from 7 islands. Using three mtDNA markers, we analysed the distribution of genetic diversity within and between islands, inferred the differentiation time-frames and investigated the inter-island migration routes and colonization patterns. RESULTS: Each species exhibited very low levels of mtDNA divergence, both within and between islands. The two oldest islands were not strongly involved in the diffusion of genetic diversity within the archipelago. The most haplotype-rich islands varied according to species but the younger, central islands contributed the most to haplotype diversity. Colonization events both in concordance with and in contradiction to an inter-island progression rule were inferred, while a non-intuitive pattern of colonization from western to eastern islands was also inferred. CONCLUSIONS: The geological development of the Azores has followed a less tidy progression compared to classic hotspot archipelagos, and this is reflected in our findings. The study species appear to have been differentiating within the Azores for <2 Myr, a fraction of the apparent life span of the archipelago, which may indicate that extinction events linked to active volcanism have played an important role. Assuming that after each extinction event, colonization was initiated from a nearby island hosting derived haplotypes, the apparent age of species diversification in the archipelago would be moved closer to the present after each extinction-recolonization cycle. Exploiting these ideas, we propose a general model for future testing. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-11 2015-11-11T16:29:47Z 2015-11-01T00:00:00Z 2017-06-14T11:54:06Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10400.3/4238 |
url |
http://hdl.handle.net/10400.3/4238 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Parmakelis, A.; Rigal, F.; Mourikis, Thanos; Balanika, Katerina; Terzopoulou, S.; Rego, C.; Amorim, I.R.; Crespo, L.C.; Pereira, F.; Triantis, K.A.; Whittaker, R.J.; Borges, P.A.V. (2015). Comparative phylogeography of endemic Azorean arthropods, "BMC Evolutionary Biology", 15:250, 1-18. doi: 10.1186/s12862-015-0523-x 1471-2148 10.1186/s12862-015-0523-x |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
BioMed Central |
publisher.none.fl_str_mv |
BioMed Central |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799130713005490176 |