Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics
Abstract The crustacean marine isopod species Haploniscus bicuspis (Sars, 1877) shows circum‐Icelandic distribution in a wide range of environmental conditions and along well‐known geographic barriers, such as the Greenland‐Iceland‐Faroe (GIF) Ridge. We wanted to explore population genetics, phyloge...
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Online Access: | http://dx.doi.org/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16234 |
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crwiley:10.1111/mec.16234 2024-09-09T19:43:27+00:00 Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics Paulus, Eva Brix, Saskia Siebert, Annabelle Martínez Arbizu, Pedro Rossel, Sven Peters, Janna Svavarsson, Jörundur Schwentner, Martin Deutsche Forschungsgemeinschaft 2021 http://dx.doi.org/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16234 en eng Wiley http://creativecommons.org/licenses/by-nc/4.0/ Molecular Ecology volume 31, issue 1, page 313-330 ISSN 0962-1083 1365-294X journal-article 2021 crwiley https://doi.org/10.1111/mec.16234 2024-08-09T04:22:51Z Abstract The crustacean marine isopod species Haploniscus bicuspis (Sars, 1877) shows circum‐Icelandic distribution in a wide range of environmental conditions and along well‐known geographic barriers, such as the Greenland‐Iceland‐Faroe (GIF) Ridge. We wanted to explore population genetics, phylogeography and cryptic speciation as well as investigate whether previously described, but unaccepted subspecies have any merit. Using the same set of specimens, we combined mitochondrial COI sequences, thousands of nuclear loci (ddRAD), and proteomic profiles, plus selected morphological characters using confocal laser scanning microscopy (CLSM). Five divergent genetic lineages were identified by COI and ddRAD, two south and three north of the GIF Ridge. Assignment of populations to the three northern lineages varied and detailed analyses revealed hybridization and gene flow between them, suggesting a single northern species with a complex phylogeographic history. No apparent hybridization was observed among lineages south of the GIF Ridge, inferring the existence of two more species. Differences in proteomic profiles between the three putative species were minimal, implying an ongoing or recent speciation process. Population differentiation was high, even among closely associated populations, and higher in mitochondrial COI than nuclear ddRAD loci. Gene flow is apparently male‐biased, leading to hybrid zones and instances of complete exchange of the local nuclear genome through immigrating males. This study did not confirm the existence of subspecies defined by male characters, which probably instead refer to different male developmental stages. Article in Journal/Newspaper Greenland Iceland Wiley Online Library Greenland Molecular Ecology 31 1 313 330 |
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Wiley Online Library |
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English |
description |
Abstract The crustacean marine isopod species Haploniscus bicuspis (Sars, 1877) shows circum‐Icelandic distribution in a wide range of environmental conditions and along well‐known geographic barriers, such as the Greenland‐Iceland‐Faroe (GIF) Ridge. We wanted to explore population genetics, phylogeography and cryptic speciation as well as investigate whether previously described, but unaccepted subspecies have any merit. Using the same set of specimens, we combined mitochondrial COI sequences, thousands of nuclear loci (ddRAD), and proteomic profiles, plus selected morphological characters using confocal laser scanning microscopy (CLSM). Five divergent genetic lineages were identified by COI and ddRAD, two south and three north of the GIF Ridge. Assignment of populations to the three northern lineages varied and detailed analyses revealed hybridization and gene flow between them, suggesting a single northern species with a complex phylogeographic history. No apparent hybridization was observed among lineages south of the GIF Ridge, inferring the existence of two more species. Differences in proteomic profiles between the three putative species were minimal, implying an ongoing or recent speciation process. Population differentiation was high, even among closely associated populations, and higher in mitochondrial COI than nuclear ddRAD loci. Gene flow is apparently male‐biased, leading to hybrid zones and instances of complete exchange of the local nuclear genome through immigrating males. This study did not confirm the existence of subspecies defined by male characters, which probably instead refer to different male developmental stages. |
author2 |
Deutsche Forschungsgemeinschaft |
format |
Article in Journal/Newspaper |
author |
Paulus, Eva Brix, Saskia Siebert, Annabelle Martínez Arbizu, Pedro Rossel, Sven Peters, Janna Svavarsson, Jörundur Schwentner, Martin |
spellingShingle |
Paulus, Eva Brix, Saskia Siebert, Annabelle Martínez Arbizu, Pedro Rossel, Sven Peters, Janna Svavarsson, Jörundur Schwentner, Martin Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
author_facet |
Paulus, Eva Brix, Saskia Siebert, Annabelle Martínez Arbizu, Pedro Rossel, Sven Peters, Janna Svavarsson, Jörundur Schwentner, Martin |
author_sort |
Paulus, Eva |
title |
Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
title_short |
Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
title_full |
Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
title_fullStr |
Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
title_full_unstemmed |
Recent speciation and hybridization in Icelandic deep‐sea isopods: An integrative approach using genomics and proteomics |
title_sort |
recent speciation and hybridization in icelandic deep‐sea isopods: an integrative approach using genomics and proteomics |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mec.16234 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mec.16234 |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Iceland |
genre_facet |
Greenland Iceland |
op_source |
Molecular Ecology volume 31, issue 1, page 313-330 ISSN 0962-1083 1365-294X |
op_rights |
http://creativecommons.org/licenses/by-nc/4.0/ |
op_doi |
https://doi.org/10.1111/mec.16234 |
container_title |
Molecular Ecology |
container_volume |
31 |
container_issue |
1 |
container_start_page |
313 |
op_container_end_page |
330 |
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1809912840672247808 |