Recent speciation and hybridization in Icelandic deep-sea isopods: An integrative approach using genomics and proteomics.
The crustacean marine isopod species Haploniscus bicuspis (G.O. 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, phylogeogra...
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ftzenodo:oai:zenodo.org:6015252 2023-05-15T16:30:21+02:00 Recent speciation and hybridization in Icelandic deep-sea isopods: An integrative approach using genomics and proteomics. Brix, Saskia Paulus, Eva Martinez Arbizu, Pedro Rossel, Sven Peters, Janna Schwentner, Martin 2022-02-08 https://zenodo.org/record/6015252 https://doi.org/10.5061/dryad.r2280gbcd unknown https://zenodo.org/communities/dryad https://zenodo.org/record/6015252 https://doi.org/10.5061/dryad.r2280gbcd oai:zenodo.org:6015252 info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode Haploniscus bicuspis Haploniscidae Asellota Isopoda proteomics info:eu-repo/semantics/other dataset 2022 ftzenodo https://doi.org/10.5061/dryad.r2280gbcd 2023-03-10T19:23:17Z The crustacean marine isopod species Haploniscus bicuspis (G.O. 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 to 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 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 characterize different male developmental stages. The files MetaDataxlsx.xlsx and Hellinger_Matrix.csv refer to the proteomic data. All other data belong to the ddRAD. Funding provided by: German Science Foundation (DFG)*Crossref Funder Registry ID: Award Number: BR3843/4-1,5-1 and MerMet17-06 (This work was also supported by the DFG initiative 1991 'Taxon-omics' [grant number RE2808/3-1 and RE2808/3-2].) All H. bicuspis specimens ... Dataset Greenland Iceland Zenodo Greenland |
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Open Polar |
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ftzenodo |
language |
unknown |
topic |
Haploniscus bicuspis Haploniscidae Asellota Isopoda proteomics |
spellingShingle |
Haploniscus bicuspis Haploniscidae Asellota Isopoda proteomics Brix, Saskia Paulus, Eva Martinez Arbizu, Pedro Rossel, Sven Peters, Janna Schwentner, Martin Recent speciation and hybridization in Icelandic deep-sea isopods: An integrative approach using genomics and proteomics. |
topic_facet |
Haploniscus bicuspis Haploniscidae Asellota Isopoda proteomics |
description |
The crustacean marine isopod species Haploniscus bicuspis (G.O. 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 to 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 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 characterize different male developmental stages. The files MetaDataxlsx.xlsx and Hellinger_Matrix.csv refer to the proteomic data. All other data belong to the ddRAD. Funding provided by: German Science Foundation (DFG)*Crossref Funder Registry ID: Award Number: BR3843/4-1,5-1 and MerMet17-06 (This work was also supported by the DFG initiative 1991 'Taxon-omics' [grant number RE2808/3-1 and RE2808/3-2].) All H. bicuspis specimens ... |
format |
Dataset |
author |
Brix, Saskia Paulus, Eva Martinez Arbizu, Pedro Rossel, Sven Peters, Janna Schwentner, Martin |
author_facet |
Brix, Saskia Paulus, Eva Martinez Arbizu, Pedro Rossel, Sven Peters, Janna Schwentner, Martin |
author_sort |
Brix, Saskia |
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. |
publishDate |
2022 |
url |
https://zenodo.org/record/6015252 https://doi.org/10.5061/dryad.r2280gbcd |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland Iceland |
genre_facet |
Greenland Iceland |
op_relation |
https://zenodo.org/communities/dryad https://zenodo.org/record/6015252 https://doi.org/10.5061/dryad.r2280gbcd oai:zenodo.org:6015252 |
op_rights |
info:eu-repo/semantics/openAccess https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.r2280gbcd |
_version_ |
1766020074691362816 |