Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates
Abstract Diversification and speciation of terrestrial organisms are anticipated in oceanic islands such as Macaronesia, a group of Atlantic islands that have remained unconnected to continental landmasses. Hitherto, the diversification of marine organisms in oceanic islands, especially those with l...
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crwiley:10.1111/mec.15052 2023-12-03T10:27:38+01:00 Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates Vieira, Pedro E. Desiderato, Andrea Holdich, David M. Soares, Pedro Creer, Simon Carvalho, Gary R. Costa, Filipe O. Queiroga, Henrique Conselho Nacional de Desenvolvimento Científico e Tecnológico Fundação para a Ciência e a Tecnologia European Regional Development Fund 2019 http://dx.doi.org/10.1111/mec.15052 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15052 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15052 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15052 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Molecular Ecology volume 28, issue 7, page 1784-1800 ISSN 0962-1083 1365-294X Genetics Ecology, Evolution, Behavior and Systematics journal-article 2019 crwiley https://doi.org/10.1111/mec.15052 2023-11-09T13:51:02Z Abstract Diversification and speciation of terrestrial organisms are anticipated in oceanic islands such as Macaronesia, a group of Atlantic islands that have remained unconnected to continental landmasses. Hitherto, the diversification of marine organisms in oceanic islands, especially those with low vagility, has received little direct empirical analysis using molecular markers. Here, we focus on such a case study, through applying a multilocus molecular approach to investigate the diversity and evolution of a group that lacks a planktonic larval stage, the isopod genus Dynamene, in Macaronesia and Northeast Atlantic. Sequences of two mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) and two nuclear (18S rRNA and 28S rRNA) loci were obtained from specimens of Dynamene edwardsi (Lucas, 1849), Dynamene magnitorata Holdich, 1968 and Dynamene bidentata (Adams, 1800) collected along the Northeast Atlantic and Macaronesia. Although no major phylogeographic structure was detected in D. bidentata and D. magnitorata , from five to nine deeply divergent lineages were evident within D. edwardsi . The divergent lineages displayed genetic distances comparable to those found among established species of peracarids. D. edwardsi exhibits a long, rich and complex phylogeographic history in Macaronesia, where the geodynamics of the islands possibly associated with founder effects and subsequent lack of gene flow among populations confounds patterns based on geographic proximity of targeted populations. Our findings collectively suggest a much larger role of oceanic islands in the diversification of marine invertebrates than previously anticipated. The work provides insights into the origins and dynamics of ongoing geographic segregation and associated deep divergence among sister evolutionary lineages in Macaronesia. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library (via Crossref) Molecular Ecology 28 7 1784 1800 |
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Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Genetics Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Genetics Ecology, Evolution, Behavior and Systematics Vieira, Pedro E. Desiderato, Andrea Holdich, David M. Soares, Pedro Creer, Simon Carvalho, Gary R. Costa, Filipe O. Queiroga, Henrique Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
topic_facet |
Genetics Ecology, Evolution, Behavior and Systematics |
description |
Abstract Diversification and speciation of terrestrial organisms are anticipated in oceanic islands such as Macaronesia, a group of Atlantic islands that have remained unconnected to continental landmasses. Hitherto, the diversification of marine organisms in oceanic islands, especially those with low vagility, has received little direct empirical analysis using molecular markers. Here, we focus on such a case study, through applying a multilocus molecular approach to investigate the diversity and evolution of a group that lacks a planktonic larval stage, the isopod genus Dynamene, in Macaronesia and Northeast Atlantic. Sequences of two mitochondrial (cytochrome c oxidase subunit I and 16S rRNA) and two nuclear (18S rRNA and 28S rRNA) loci were obtained from specimens of Dynamene edwardsi (Lucas, 1849), Dynamene magnitorata Holdich, 1968 and Dynamene bidentata (Adams, 1800) collected along the Northeast Atlantic and Macaronesia. Although no major phylogeographic structure was detected in D. bidentata and D. magnitorata , from five to nine deeply divergent lineages were evident within D. edwardsi . The divergent lineages displayed genetic distances comparable to those found among established species of peracarids. D. edwardsi exhibits a long, rich and complex phylogeographic history in Macaronesia, where the geodynamics of the islands possibly associated with founder effects and subsequent lack of gene flow among populations confounds patterns based on geographic proximity of targeted populations. Our findings collectively suggest a much larger role of oceanic islands in the diversification of marine invertebrates than previously anticipated. The work provides insights into the origins and dynamics of ongoing geographic segregation and associated deep divergence among sister evolutionary lineages in Macaronesia. |
author2 |
Conselho Nacional de Desenvolvimento Científico e Tecnológico Fundação para a Ciência e a Tecnologia European Regional Development Fund |
format |
Article in Journal/Newspaper |
author |
Vieira, Pedro E. Desiderato, Andrea Holdich, David M. Soares, Pedro Creer, Simon Carvalho, Gary R. Costa, Filipe O. Queiroga, Henrique |
author_facet |
Vieira, Pedro E. Desiderato, Andrea Holdich, David M. Soares, Pedro Creer, Simon Carvalho, Gary R. Costa, Filipe O. Queiroga, Henrique |
author_sort |
Vieira, Pedro E. |
title |
Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
title_short |
Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
title_full |
Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
title_fullStr |
Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
title_full_unstemmed |
Deep segregation in the open ocean: Macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
title_sort |
deep segregation in the open ocean: macaronesia as an evolutionary hotspot for low dispersal marine invertebrates |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/mec.15052 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fmec.15052 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.15052 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.15052 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Molecular Ecology volume 28, issue 7, page 1784-1800 ISSN 0962-1083 1365-294X |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/mec.15052 |
container_title |
Molecular Ecology |
container_volume |
28 |
container_issue |
7 |
container_start_page |
1784 |
op_container_end_page |
1800 |
_version_ |
1784277463295066112 |