Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)?
Life traits such as reproductive strategy can be determining factors of species evolutionary history and explain the resulting diversity patterns. This can be investigated using phylogeographic analyses of genetic units. In this work, the genetic structure of five asteroid genera with contrasting re...
Main Authors: | , , , , , , , |
---|---|
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2019
|
Subjects: | |
Online Access: | http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/296817 https://dipot.ulb.ac.be/dspace/bitstream/2013/296817/3/Moreau_et_al_2019_Rev3.pdf |
id |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/296817 |
---|---|
record_format |
openpolar |
spelling |
ftunivbruxelles:oai:dipot.ulb.ac.be:2013/296817 2023-05-15T14:05:26+02:00 Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Aguera Garcia, Antonio Saucède, Thomas 2019-07-16 1 full-text file(s): application/pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/296817 https://dipot.ulb.ac.be/dspace/bitstream/2013/296817/3/Moreau_et_al_2019_Rev3.pdf en eng uri/info:doi/10.1002/ece3.5280 uri/info:scp/85070448336 https://dipot.ulb.ac.be/dspace/bitstream/2013/296817/3/Moreau_et_al_2019_Rev3.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/296817 1 full-text file(s): info:eu-repo/semantics/openAccess Ecology and evolution, 9 (15 Ecologie Environnement et pollution Santé publique Antarctica Asteroidea bipolarity brooding Echinodermata emergence invertebrate thermohaline expressway trans-Antarctic seaway info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2019 ftunivbruxelles 2022-06-12T21:48:06Z Life traits such as reproductive strategy can be determining factors of species evolutionary history and explain the resulting diversity patterns. This can be investigated using phylogeographic analyses of genetic units. In this work, the genetic structure of five asteroid genera with contrasting reproductive strategies (brooding: Diplasterias, Notasterias and Lysasterias versus broadcasting: Psilaster and Bathybiaster) was investigated in the Southern Ocean. Over 1,400 mtDNA cytochrome C oxidase subunit I (COI) sequences were analysed using five species delineation methods (ABGD, ASAP, mPTP, sGMYC and mGMYC), two phylogenetic reconstructions (ML and BA), and molecular clock calibrations, in order to examine the weight of reproductive strategy in the observed differences among phylogeographic patterns. We hypothesised that brooding species would show higher levels of genetic diversity and species richness along with a clearer geographic structuring than broadcasting species. In contrast, genetic diversity and species richness were not found to be significantly different between brooders and broadcasters, but broadcasters are less spatially structured than brooders supporting our initial hypothesis and suggesting more complex evolutionary histories associated to this reproductive strategy. Broadcasters' phylogeography can be explained by different scenarios including deep-sea colonisation routes, bipolarity or cosmopolitanism, and sub-Antarctic emergence for the genus Bathybiaster; Antarctic- New Zealand faunal exchanges across the Polar Front for the genus Psilaster. Brooders' phylogeography could support the previously formulated hypothesis of a past trans-Antarctic seaway established between the Ross and the Weddell seas during the Plio-Pleistocene. Our results also show, for the first time, that the Weddell Sea is populated by a mixed asteroid fauna originating from both the East and West Antarctic. SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Weddell Sea DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic New Zealand Southern Ocean Weddell Weddell Sea |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Ecologie Environnement et pollution Santé publique Antarctica Asteroidea bipolarity brooding Echinodermata emergence invertebrate thermohaline expressway trans-Antarctic seaway |
spellingShingle |
Ecologie Environnement et pollution Santé publique Antarctica Asteroidea bipolarity brooding Echinodermata emergence invertebrate thermohaline expressway trans-Antarctic seaway Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Aguera Garcia, Antonio Saucède, Thomas Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
topic_facet |
Ecologie Environnement et pollution Santé publique Antarctica Asteroidea bipolarity brooding Echinodermata emergence invertebrate thermohaline expressway trans-Antarctic seaway |
description |
Life traits such as reproductive strategy can be determining factors of species evolutionary history and explain the resulting diversity patterns. This can be investigated using phylogeographic analyses of genetic units. In this work, the genetic structure of five asteroid genera with contrasting reproductive strategies (brooding: Diplasterias, Notasterias and Lysasterias versus broadcasting: Psilaster and Bathybiaster) was investigated in the Southern Ocean. Over 1,400 mtDNA cytochrome C oxidase subunit I (COI) sequences were analysed using five species delineation methods (ABGD, ASAP, mPTP, sGMYC and mGMYC), two phylogenetic reconstructions (ML and BA), and molecular clock calibrations, in order to examine the weight of reproductive strategy in the observed differences among phylogeographic patterns. We hypothesised that brooding species would show higher levels of genetic diversity and species richness along with a clearer geographic structuring than broadcasting species. In contrast, genetic diversity and species richness were not found to be significantly different between brooders and broadcasters, but broadcasters are less spatially structured than brooders supporting our initial hypothesis and suggesting more complex evolutionary histories associated to this reproductive strategy. Broadcasters' phylogeography can be explained by different scenarios including deep-sea colonisation routes, bipolarity or cosmopolitanism, and sub-Antarctic emergence for the genus Bathybiaster; Antarctic- New Zealand faunal exchanges across the Polar Front for the genus Psilaster. Brooders' phylogeography could support the previously formulated hypothesis of a past trans-Antarctic seaway established between the Ross and the Weddell seas during the Plio-Pleistocene. Our results also show, for the first time, that the Weddell Sea is populated by a mixed asteroid fauna originating from both the East and West Antarctic. SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Aguera Garcia, Antonio Saucède, Thomas |
author_facet |
Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Aguera Garcia, Antonio Saucède, Thomas |
author_sort |
Moreau, Camille |
title |
Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
title_short |
Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
title_full |
Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
title_fullStr |
Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
title_full_unstemmed |
Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
title_sort |
is reproductive strategy a key factor in understanding the evolutionary history of southern ocean asteroidea (echinodermata)? |
publishDate |
2019 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/296817 https://dipot.ulb.ac.be/dspace/bitstream/2013/296817/3/Moreau_et_al_2019_Rev3.pdf |
geographic |
Antarctic New Zealand Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic New Zealand Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean Weddell Sea |
op_source |
Ecology and evolution, 9 (15 |
op_relation |
uri/info:doi/10.1002/ece3.5280 uri/info:scp/85070448336 https://dipot.ulb.ac.be/dspace/bitstream/2013/296817/3/Moreau_et_al_2019_Rev3.pdf http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/296817 |
op_rights |
1 full-text file(s): info:eu-repo/semantics/openAccess |
_version_ |
1766277340559572992 |