Explaining the «anomalous» distribution of Echinodium Jur. (Bryopsida) : independent evolution in Macaronesia and Australasia

Detalhes bibliográficos
Autor(a) principal: Stech, Michael
Data de Publicação: 2008
Outros Autores: Sim-Sim, Manuela, Esquível, M. Glória, Fontinha, Susana, Tangney, Ray, Lobo, Carlos, Gabriel, Rosalina, Quandt, Dietmar
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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spelling 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
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dc.publisher.none.fl_str_mv ElsevierGmbH
publisher.none.fl_str_mv ElsevierGmbH
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