Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean
Various evolutionary processes greatly influenced by the geological and climatic history shaped the diversity of the current Antarctic marine fauna. In the past, these Antarctic species have survived different glacial cycles through dispersal to refugia, and/or adaptations to novel abiotic and bioti...
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ftorbi:oai:orbi.ulg.ac.be:2268/235321 2024-04-21T07:49:42+00:00 Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean Salabao, Louraine Frederich, Bruno Lepoint, Gilles Verheye, Marie Schön, Isa 2019-05 https://orbi.uliege.be/handle/2268/235321 en eng https://orbi.uliege.be/handle/2268/235321 info:hdl:2268/235321 International Liège Colloquium on Ocean Hydrodynamics, from 06-05-2019 to 09-06-2019 evolutionary history biodiversity Southern Ocean amphipoda Eusirus Life sciences Environmental sciences & ecology Zoology Genetics & genetic processes Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Génétique & processus génétiques Sciences aquatiques & océanologie conference poster not in proceedings http://purl.org/coar/resource_type/c_18co info:eu-repo/semantics/conferencePoster 2019 ftorbi 2024-03-27T14:49:32Z Various evolutionary processes greatly influenced by the geological and climatic history shaped the diversity of the current Antarctic marine fauna. In the past, these Antarctic species have survived different glacial cycles through dispersal to refugia, and/or adaptations to novel abiotic and biotic conditions. With the increasing temperatures in the polar regions, marine fauna is currently faced with three possible outcomes: adaptation, migration or extinction. Based on how these organisms were able to survive environmental changes in the past will allow us to predict their future response. In this study, amphipods of the genus Eusirus are as model organisms as knowledge on their ecology and biogeography is still very limited. The evolutionary history of Eusirus amphipods is phylogenetically reconstructed through time with molecular data. DNA sequence data are obtained by sequencing the complete mitochondrial genomes, using a combination of skimming sequencing and long-range PCRs amplicons of different Eusirus species. Mitochondrial data will be complemented with additional sequence data from nuclear genes. Time-calibrated phylogenies will be used as basis for plotting ecological and trophic data generated by stable isotope analyses as well as morphological information. By combining data from time-calibrated phylogenies as well as from ecology and morphology, we aim to understand the evolutionary processes that led to the current diversity of Eusirus amphipods. Conference Object Antarc* Antarctic Southern Ocean University of Liège: ORBi (Open Repository and Bibliography) |
institution |
Open Polar |
collection |
University of Liège: ORBi (Open Repository and Bibliography) |
op_collection_id |
ftorbi |
language |
English |
topic |
evolutionary history biodiversity Southern Ocean amphipoda Eusirus Life sciences Environmental sciences & ecology Zoology Genetics & genetic processes Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Génétique & processus génétiques Sciences aquatiques & océanologie |
spellingShingle |
evolutionary history biodiversity Southern Ocean amphipoda Eusirus Life sciences Environmental sciences & ecology Zoology Genetics & genetic processes Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Génétique & processus génétiques Sciences aquatiques & océanologie Salabao, Louraine Frederich, Bruno Lepoint, Gilles Verheye, Marie Schön, Isa Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
topic_facet |
evolutionary history biodiversity Southern Ocean amphipoda Eusirus Life sciences Environmental sciences & ecology Zoology Genetics & genetic processes Aquatic sciences & oceanology Sciences du vivant Sciences de l’environnement & écologie Zoologie Génétique & processus génétiques Sciences aquatiques & océanologie |
description |
Various evolutionary processes greatly influenced by the geological and climatic history shaped the diversity of the current Antarctic marine fauna. In the past, these Antarctic species have survived different glacial cycles through dispersal to refugia, and/or adaptations to novel abiotic and biotic conditions. With the increasing temperatures in the polar regions, marine fauna is currently faced with three possible outcomes: adaptation, migration or extinction. Based on how these organisms were able to survive environmental changes in the past will allow us to predict their future response. In this study, amphipods of the genus Eusirus are as model organisms as knowledge on their ecology and biogeography is still very limited. The evolutionary history of Eusirus amphipods is phylogenetically reconstructed through time with molecular data. DNA sequence data are obtained by sequencing the complete mitochondrial genomes, using a combination of skimming sequencing and long-range PCRs amplicons of different Eusirus species. Mitochondrial data will be complemented with additional sequence data from nuclear genes. Time-calibrated phylogenies will be used as basis for plotting ecological and trophic data generated by stable isotope analyses as well as morphological information. By combining data from time-calibrated phylogenies as well as from ecology and morphology, we aim to understand the evolutionary processes that led to the current diversity of Eusirus amphipods. |
format |
Conference Object |
author |
Salabao, Louraine Frederich, Bruno Lepoint, Gilles Verheye, Marie Schön, Isa |
author_facet |
Salabao, Louraine Frederich, Bruno Lepoint, Gilles Verheye, Marie Schön, Isa |
author_sort |
Salabao, Louraine |
title |
Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
title_short |
Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
title_full |
Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
title_fullStr |
Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
title_full_unstemmed |
Unravelling the evolutionary processes that shaped the diversity of the amphipod genus Eusirus in the Southern Ocean |
title_sort |
unravelling the evolutionary processes that shaped the diversity of the amphipod genus eusirus in the southern ocean |
publishDate |
2019 |
url |
https://orbi.uliege.be/handle/2268/235321 |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_source |
International Liège Colloquium on Ocean Hydrodynamics, from 06-05-2019 to 09-06-2019 |
op_relation |
https://orbi.uliege.be/handle/2268/235321 info:hdl:2268/235321 |
_version_ |
1796933718509617152 |