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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ftpubmed:oai:pubmedcentral.nih.gov:6686340 2023-05-15T13:57:24+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 Agüera, Antonio Saucède, Thomas 2019-07-16 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6686340/ http://www.ncbi.nlm.nih.gov/pubmed/31410254 https://doi.org/10.1002/ece3.5280 en eng John Wiley and Sons Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6686340/ http://www.ncbi.nlm.nih.gov/pubmed/31410254 http://dx.doi.org/10.1002/ece3.5280 © 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. CC-BY Original Research Text 2019 ftpubmed https://doi.org/10.1002/ece3.5280 2019-08-18T00:48:21Z 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. Text Antarc* Antarctic Southern Ocean Weddell Sea PubMed Central (PMC) Antarctic New Zealand Southern Ocean Weddell Weddell Sea Ecology and Evolution 9 15 8465 8478 |
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Original Research Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Agüera, Antonio Saucède, Thomas Is reproductive strategy a key factor in understanding the evolutionary history of Southern Ocean Asteroidea (Echinodermata)? |
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Original Research |
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 |
Text |
author |
Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Agüera, Antonio Saucède, Thomas |
author_facet |
Moreau, Camille Danis, Bruno Jossart, Quentin Eléaume, Marc Sands, Chester Achaz, Guillaume Agüera, 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)? |
publisher |
John Wiley and Sons Inc. |
publishDate |
2019 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6686340/ http://www.ncbi.nlm.nih.gov/pubmed/31410254 https://doi.org/10.1002/ece3.5280 |
geographic |
Antarctic New Zealand Southern Ocean Weddell Weddell Sea |
geographic_facet |
Antarctic New Zealand Southern Ocean Weddell Weddell Sea |
genre |
Antarc* Antarctic Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Southern Ocean Weddell Sea |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6686340/ http://www.ncbi.nlm.nih.gov/pubmed/31410254 http://dx.doi.org/10.1002/ece3.5280 |
op_rights |
© 2019 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd. This is an open access article under the terms of the http://creativecommons.org/licenses/by/4.0/ License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1002/ece3.5280 |
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Ecology and Evolution |
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9 |
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15 |
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8465 |
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8478 |
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