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...
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John Wiley and Sons Ltd
2019
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Online Access: | http://nora.nerc.ac.uk/id/eprint/524416/ https://nora.nerc.ac.uk/id/eprint/524416/1/Moreau_et_al-2019-Ecology_and_Evolution.pdf https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.5280 |
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ftnerc:oai:nora.nerc.ac.uk:524416 2023-05-15T13:41:43+02:00 Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? Moreau, C. Danis, B Jossart, Q. Eléaume, M. Sands, Chester Achaz, G. Agüera, A. Saucède, T. 2019-07-16 text http://nora.nerc.ac.uk/id/eprint/524416/ https://nora.nerc.ac.uk/id/eprint/524416/1/Moreau_et_al-2019-Ecology_and_Evolution.pdf https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.5280 en eng John Wiley and Sons Ltd https://nora.nerc.ac.uk/id/eprint/524416/1/Moreau_et_al-2019-Ecology_and_Evolution.pdf Moreau, C.; Danis, B; Jossart, Q.; Eléaume, M.; Sands, Chester orcid:0000-0003-1028-0328 Achaz, G.; Agüera, A.; Saucède, T. 2019 Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? Ecology and Evolution, 9 (15). 8465-8478. https://doi.org/10.1002/ece3.5280 <https://doi.org/10.1002/ece3.5280> cc_by_4 CC-BY Publication - Article PeerReviewed 2019 ftnerc 2023-02-04T19:48:50Z 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. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean Weddell Sea Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean Weddell Sea New Zealand Weddell Ecology and Evolution 9 15 8465 8478 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
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. |
format |
Article in Journal/Newspaper |
author |
Moreau, C. Danis, B Jossart, Q. Eléaume, M. Sands, Chester Achaz, G. Agüera, A. Saucède, T. |
spellingShingle |
Moreau, C. Danis, B Jossart, Q. Eléaume, M. Sands, Chester Achaz, G. Agüera, A. Saucède, T. Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
author_facet |
Moreau, C. Danis, B Jossart, Q. Eléaume, M. Sands, Chester Achaz, G. Agüera, A. Saucède, T. |
author_sort |
Moreau, C. |
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)? |
publisher |
John Wiley and Sons Ltd |
publishDate |
2019 |
url |
http://nora.nerc.ac.uk/id/eprint/524416/ https://nora.nerc.ac.uk/id/eprint/524416/1/Moreau_et_al-2019-Ecology_and_Evolution.pdf https://onlinelibrary.wiley.com/doi/full/10.1002/ece3.5280 |
geographic |
Antarctic Southern Ocean Weddell Sea New Zealand Weddell |
geographic_facet |
Antarctic Southern Ocean Weddell Sea New Zealand Weddell |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_relation |
https://nora.nerc.ac.uk/id/eprint/524416/1/Moreau_et_al-2019-Ecology_and_Evolution.pdf Moreau, C.; Danis, B; Jossart, Q.; Eléaume, M.; Sands, Chester orcid:0000-0003-1028-0328 Achaz, G.; Agüera, A.; Saucède, T. 2019 Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? Ecology and Evolution, 9 (15). 8465-8478. https://doi.org/10.1002/ece3.5280 <https://doi.org/10.1002/ece3.5280> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
container_title |
Ecology and Evolution |
container_volume |
9 |
container_issue |
15 |
container_start_page |
8465 |
op_container_end_page |
8478 |
_version_ |
1766155491642179584 |