Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia
Autor(a) principal: | |
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Data de Publicação: | 2008 |
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/10400.3/1690 |
Resumo: | Copyright © 2008 Gesellschaft für Biologische Systematik. Published by Elsevier GmbH. |
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Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and AustralasiaBiogeographyEchinodiaceaeITStrnLUAA intronMolecular RelationshipsPleurocarpous MossesCopyright © 2008 Gesellschaft für Biologische Systematik. Published by Elsevier GmbH.The peculiar disjunction between Macaronesia and Australasia of the morphologically isolated pleurocarpous moss genus Echinodium is one of the most prominent questions in bryology. Echinodium as traditionally circumscribed comprises six extant species, four restricted to the Macaronesian archipelagos and two confined to the Australasian/Pacific regions. Molecular phylogenetic analyses based on plastid trnLUAA intron and nuclear ribosomal ITS sequences indicate that Echinodium is polyphyletic and split into three groups. Three of the four Macaronesian species (E. spinosum and the single island endemics E. renauldii and E. setigerum) are closely related to each other and treated as Echinodium s.str. (Echinodiaceae). Further clarification of the relationships of Echinodium s.str. with Orthostichella, a segregate of Lembophyllaceae, is needed. The remaining Macaronesian species, E. prolixum, is transferred to Isothecium (Lembophyllaceae); this systematic position is also strongly supported by leaf characters. The two Australasian species, E. hispidum and E. umbrosum, are molecularly unrelated to the Macaronesian species and are transferred to Thamnobryum in the Neckeraceae. While the molecular data suggest that the peculiar distribution pattern of ‘Echinodium’ is an artefact, the striking morphological similarity observed in Macaronesian and Australasian species cannot be dismissed. Possible explanations are: (i) parallel morphological evolution of the ‘Echinodium habit’ in Macaronesia and Australasia, or (ii) retention of a set of plesiomorphic characters in non-related groups in relict habitats, the Macaronesian laurel forest and the austral temperate rain forests, respectively. Of these hypotheses, the evolutionary parallelism hypothesis seems more plausible for several reasons, which are discussed.ElsevierGmbHRepositório da Universidade dos AçoresStech, MichaelSim-Sim, ManuelaEsquível, M. GlóriaFontinha, SusanaTangney, RayLobo, CarlosGabriel, RosalinaQuandt, Dietmar2013-03-18T17:00:39Z2008-10-312008-10-31T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.3/1690engStech, M., Sim-Sim, M., Esquível, G., Fontinha, S., Tangney, R., Lobo, C., Gabriel, R. & Quandt, D. (2008). Explaining the 'anomalous' distribution of Echinodium Jur. (Bryopsida): independent evolution in Macaronesia and Australasia. "Organisms Diversity and Evolution", 8: 282-292. http://dx.doi.org/10.1016/j.ode.2008.02.001.1439-6092 (Print)info: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:RCAAP2022-12-20T14:29:27Zoai:repositorio.uac.pt:10400.3/1690Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T16:24:32.245867Repositório 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 |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
title |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
spellingShingle |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia Stech, Michael Biogeography Echinodiaceae ITS trnLUAA intron Molecular Relationships Pleurocarpous Mosses |
title_short |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
title_full |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
title_fullStr |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
title_full_unstemmed |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
title_sort |
Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia |
author |
Stech, Michael |
author_facet |
Stech, Michael Sim-Sim, Manuela Esquível, M. Glória Fontinha, Susana Tangney, Ray Lobo, Carlos Gabriel, Rosalina Quandt, Dietmar |
author_role |
author |
author2 |
Sim-Sim, Manuela Esquível, M. Glória Fontinha, Susana Tangney, Ray Lobo, Carlos Gabriel, Rosalina Quandt, Dietmar |
author2_role |
author author author author author author author |
dc.contributor.none.fl_str_mv |
Repositório da Universidade dos Açores |
dc.contributor.author.fl_str_mv |
Stech, Michael Sim-Sim, Manuela Esquível, M. Glória Fontinha, Susana Tangney, Ray Lobo, Carlos Gabriel, Rosalina Quandt, Dietmar |
dc.subject.por.fl_str_mv |
Biogeography Echinodiaceae ITS trnLUAA intron Molecular Relationships Pleurocarpous Mosses |
topic |
Biogeography Echinodiaceae ITS trnLUAA intron Molecular Relationships Pleurocarpous Mosses |
description |
Copyright © 2008 Gesellschaft für Biologische Systematik. Published by Elsevier GmbH. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-10-31 2008-10-31T00:00:00Z 2013-03-18T17:00:39Z |
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/10400.3/1690 |
url |
http://hdl.handle.net/10400.3/1690 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Stech, M., Sim-Sim, M., Esquível, G., Fontinha, S., Tangney, R., Lobo, C., Gabriel, R. & Quandt, D. (2008). Explaining the 'anomalous' distribution of Echinodium Jur. (Bryopsida): independent evolution in Macaronesia and Australasia. "Organisms Diversity and Evolution", 8: 282-292. http://dx.doi.org/10.1016/j.ode.2008.02.001. 1439-6092 (Print) |
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 |
ElsevierGmbH |
publisher.none.fl_str_mv |
ElsevierGmbH |
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 |
instacron_str |
RCAAP |
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RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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