The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.

Geological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological his...

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Authors: Macías Hernández, Nuria, Bidegaray Batista, Leticia, Emerson, B., Oromí, Pedro, Arnedo Lombarte, Miquel Àngel
Format: article
Status:Versión aceptada para publicación
Publication Date:2013
Country:España
Institution:Universidad de Barcelona
Repository:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/54811
Online Access:https://hdl.handle.net/2445/54811
Access Level:Open access
Keyword:Aranyes
Araneids
Biodiversitat
Filogeografia
Geologia històrica
Canàries
Spiders
Orb weavers
Biodiversity
Phylogeography
Historical geology
Canary Islands
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spelling The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.Macías Hernández, NuriaBidegaray Batista, LeticiaEmerson, B.Oromí, PedroArnedo Lombarte, Miquel ÀngelAranyesAraneidsBiodiversitatFilogeografiaGeologia històricaCanàriesSpidersOrb weaversBiodiversityPhylogeographyHistorical geologyCanary IslandsGeological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological histories. The island of Tenerife, in the Canary Islands, emerged in the late Miocene as 3 precursor islands that were subsequently connected and reisolated by volcanic cycles. The spider Dysdera verneaui is endemic to the island of Tenerife, where it is widely distributed throughout most island habitats, providing an excellent model to investigate the role of physical barriers and ecological adaptation in shaping within-island diversity. Here, we present evidence that the phylogeographic patterns of this species trace back to the independent emergence of the protoislands. Molecular markers (mitochondrial genes cox1, 16S, and nad1 and the nuclear genes ITS-2 and 28S) analyzed from 100 specimens (including a thorough sampling of D. verneaui populations and additional outgroups) identify 2 distinct evolutionary lineages that correspond to 2 precursor islands, each with diagnostic genital characters indicative of separate species status. Episodic introgression events between these 2 main evolutionary lineages explain the observed incongruence between mitochondrial and nuclear markers, probably as a result of the homogenization of their ITS-2 sequence types. The most widespread lineage exhibits a complex population structure, which is compatible with either secondary contact, following connection of deeply divergent lineages, or alternatively, a back colonization from 1 precursor island to another.Oxford University Press2013info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersionapplication/pdfhttps://hdl.handle.net/2445/54811Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésVersió postprint del document publicat a: http://dx.doi.org/10.1093/jhered/est008Journal of Heredity, 2013, vol. 104, num. 3, p. 341-356http://dx.doi.org/10.1093/jhered/est008(c) The American Genetic Association , 2013info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/548112026-05-27T06:46:51Z
dc.title.none.fl_str_mv The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
title The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
spellingShingle The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
Macías Hernández, Nuria
Aranyes
Araneids
Biodiversitat
Filogeografia
Geologia històrica
Canàries
Spiders
Orb weavers
Biodiversity
Phylogeography
Historical geology
Canary Islands
title_short The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
title_full The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
title_fullStr The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
title_full_unstemmed The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
title_sort The Imprint of Geologic History on Within‐Island Diversification of Woodlouse-­Hunter Spiders (Araneae, Dysderidae) in the Canary Islands.
dc.creator.none.fl_str_mv Macías Hernández, Nuria
Bidegaray Batista, Leticia
Emerson, B.
Oromí, Pedro
Arnedo Lombarte, Miquel Àngel
author Macías Hernández, Nuria
author_facet Macías Hernández, Nuria
Bidegaray Batista, Leticia
Emerson, B.
Oromí, Pedro
Arnedo Lombarte, Miquel Àngel
author_role author
author2 Bidegaray Batista, Leticia
Emerson, B.
Oromí, Pedro
Arnedo Lombarte, Miquel Àngel
author2_role author
author
author
author
dc.subject.none.fl_str_mv Aranyes
Araneids
Biodiversitat
Filogeografia
Geologia històrica
Canàries
Spiders
Orb weavers
Biodiversity
Phylogeography
Historical geology
Canary Islands
topic Aranyes
Araneids
Biodiversitat
Filogeografia
Geologia històrica
Canàries
Spiders
Orb weavers
Biodiversity
Phylogeography
Historical geology
Canary Islands
description Geological processes and ecological adaptation are major drivers of diversification on oceanic islands. Although diversification in these islands is often interpreted as resulting from dispersal or island hopping rather than vicariance, this may not be the case in islands with complex geological histories. The island of Tenerife, in the Canary Islands, emerged in the late Miocene as 3 precursor islands that were subsequently connected and reisolated by volcanic cycles. The spider Dysdera verneaui is endemic to the island of Tenerife, where it is widely distributed throughout most island habitats, providing an excellent model to investigate the role of physical barriers and ecological adaptation in shaping within-island diversity. Here, we present evidence that the phylogeographic patterns of this species trace back to the independent emergence of the protoislands. Molecular markers (mitochondrial genes cox1, 16S, and nad1 and the nuclear genes ITS-2 and 28S) analyzed from 100 specimens (including a thorough sampling of D. verneaui populations and additional outgroups) identify 2 distinct evolutionary lineages that correspond to 2 precursor islands, each with diagnostic genital characters indicative of separate species status. Episodic introgression events between these 2 main evolutionary lineages explain the observed incongruence between mitochondrial and nuclear markers, probably as a result of the homogenization of their ITS-2 sequence types. The most widespread lineage exhibits a complex population structure, which is compatible with either secondary contact, following connection of deeply divergent lineages, or alternatively, a back colonization from 1 precursor island to another.
publishDate 2013
dc.date.none.fl_str_mv 2013
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/54811
url https://hdl.handle.net/2445/54811
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: http://dx.doi.org/10.1093/jhered/est008
Journal of Heredity, 2013, vol. 104, num. 3, p. 341-356
http://dx.doi.org/10.1093/jhered/est008
dc.rights.none.fl_str_mv (c) The American Genetic Association , 2013
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Genetic Association , 2013
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Oxford University Press
publisher.none.fl_str_mv Oxford University Press
dc.source.none.fl_str_mv Articles publicats en revistes (Biologia Evolutiva, Ecologia i Ciències Ambientals)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869424395774066688
score 15,301603

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