Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii.
11 pages International audience Broadcasting is the predominant spawning behavior among benthic marine invertebrates, mainly associated with planktotrophic and planktonic lecitotrophic development. Broadcasting allows genetic mixing that should contribute to increase the genetic diversity of a femal...
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Online Access: | https://hal.science/hal-01516148 https://doi.org/10.1007/s00300-016-2001-3 |
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ftunivbourgogne:oai:HAL:hal-01516148v1 2024-02-11T09:57:58+01:00 Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. Maturana, Claudia S. Gérard, Karin Díaz, Angie David, Bruno Feral, Jean-Pierre Poulin, Elie Instituto de Ecología y Biodiversidad (IEB) GAIA-Antártica Universidad de Magallanes (UMAG) Departamento de Zoología Universidad de Concepción - University of Concepcion Chile Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Muséum national d'Histoire naturelle (MNHN) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) Study supported by the Grants PFB-23 and ICM P05-002 and Thesis project INACH M02_10 and CONICYT PhD 21150317; INACH D05-09, FP_03-12, CONICYT Ph.D.D-21060218, D21-08 and Postdoctoral FONDECYT 3130677, Fondecyt post-doctorate 3100139 and INACH F01_09, and Egide program ECOS-Sud C06B02. PROTEKER 2017-04 https://hal.science/hal-01516148 https://doi.org/10.1007/s00300-016-2001-3 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-2001-3 hal-01516148 https://hal.science/hal-01516148 doi:10.1007/s00300-016-2001-3 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01516148 Polar Biology, 2017, 40 (4), pp.787-797. ⟨10.1007/s00300-016-2001-3⟩ http://link.springer.com/article/10.1007%2Fs00300-016-2001-3 Parentage analysis Polyandry Spermcast Vagility Panmixia Southern Ocean [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis info:eu-repo/semantics/article Journal articles 2017 ftunivbourgogne https://doi.org/10.1007/s00300-016-2001-3 2024-01-23T23:39:13Z 11 pages International audience Broadcasting is the predominant spawning behavior among benthic marine invertebrates, mainly associated with planktotrophic and planktonic lecitotrophic development. Broadcasting allows genetic mixing that should contribute to increase the genetic diversity of a female clutch. Conversely, in brooding species characterized by protected development, oocytes are retained and only sperm is released, which is supposed to limit the number of males that contribute to a female clutch. This spermcasting behavior together with egg retention, unusually frequent among Antarctic marine invertebrates, putatively give brooders low dispersal capacities which may reduce genetic mixing and generate genetic and kinship structure at a small spatial scale. Like many other Antarctic marine benthic invertebrates, the irregular sea urchin Abatus agassizii is a spermcaster that broods its young. In this study, we assessed the genetic diversity among 66 adults using 6 polymorphic microsatellite loci and performed progeny array analyses in order to evaluate the number of mates per female as well as genetic structure at a small spatial scale. A. agassizii exhibited a polyandric system with 2–5 mates per female regardless of population density. Bayesian analyses suggested the absence of genetic structure along our 20-m transect, while relatedness among individuals did not differ from that expected under panmixia. Finally, we conclude that a limited number of males contribute to a female clutch, probably as a consequence of limited sperm dispersal and that movement of adults may be sufficient to avoid kinship structure in the population. Article in Journal/Newspaper Antarc* Antarctic Polar Biology Southern Ocean Université de Bourgogne (UB): HAL Antarctic Southern Ocean The Antarctic Polar Biology 40 4 787 797 |
institution |
Open Polar |
collection |
Université de Bourgogne (UB): HAL |
op_collection_id |
ftunivbourgogne |
language |
English |
topic |
Parentage analysis Polyandry Spermcast Vagility Panmixia Southern Ocean [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
spellingShingle |
Parentage analysis Polyandry Spermcast Vagility Panmixia Southern Ocean [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis Maturana, Claudia S. Gérard, Karin Díaz, Angie David, Bruno Feral, Jean-Pierre Poulin, Elie Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
topic_facet |
Parentage analysis Polyandry Spermcast Vagility Panmixia Southern Ocean [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis |
description |
11 pages International audience Broadcasting is the predominant spawning behavior among benthic marine invertebrates, mainly associated with planktotrophic and planktonic lecitotrophic development. Broadcasting allows genetic mixing that should contribute to increase the genetic diversity of a female clutch. Conversely, in brooding species characterized by protected development, oocytes are retained and only sperm is released, which is supposed to limit the number of males that contribute to a female clutch. This spermcasting behavior together with egg retention, unusually frequent among Antarctic marine invertebrates, putatively give brooders low dispersal capacities which may reduce genetic mixing and generate genetic and kinship structure at a small spatial scale. Like many other Antarctic marine benthic invertebrates, the irregular sea urchin Abatus agassizii is a spermcaster that broods its young. In this study, we assessed the genetic diversity among 66 adults using 6 polymorphic microsatellite loci and performed progeny array analyses in order to evaluate the number of mates per female as well as genetic structure at a small spatial scale. A. agassizii exhibited a polyandric system with 2–5 mates per female regardless of population density. Bayesian analyses suggested the absence of genetic structure along our 20-m transect, while relatedness among individuals did not differ from that expected under panmixia. Finally, we conclude that a limited number of males contribute to a female clutch, probably as a consequence of limited sperm dispersal and that movement of adults may be sufficient to avoid kinship structure in the population. |
author2 |
Instituto de Ecología y Biodiversidad (IEB) GAIA-Antártica Universidad de Magallanes (UMAG) Departamento de Zoología Universidad de Concepción - University of Concepcion Chile Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Muséum national d'Histoire naturelle (MNHN) Institut méditerranéen de biodiversité et d'écologie marine et continentale (IMBE) Avignon Université (AU)-Aix Marseille Université (AMU)-Institut de recherche pour le développement IRD : UMR237-Centre National de la Recherche Scientifique (CNRS) Study supported by the Grants PFB-23 and ICM P05-002 and Thesis project INACH M02_10 and CONICYT PhD 21150317; INACH D05-09, FP_03-12, CONICYT Ph.D.D-21060218, D21-08 and Postdoctoral FONDECYT 3130677, Fondecyt post-doctorate 3100139 and INACH F01_09, and Egide program ECOS-Sud C06B02. PROTEKER |
format |
Article in Journal/Newspaper |
author |
Maturana, Claudia S. Gérard, Karin Díaz, Angie David, Bruno Feral, Jean-Pierre Poulin, Elie |
author_facet |
Maturana, Claudia S. Gérard, Karin Díaz, Angie David, Bruno Feral, Jean-Pierre Poulin, Elie |
author_sort |
Maturana, Claudia S. |
title |
Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
title_short |
Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
title_full |
Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
title_fullStr |
Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
title_full_unstemmed |
Mating system and evidence of multiple paternity in the Antarctic brooding sea urchin Abatus agassizii. |
title_sort |
mating system and evidence of multiple paternity in the antarctic brooding sea urchin abatus agassizii. |
publisher |
HAL CCSD |
publishDate |
2017 |
url |
https://hal.science/hal-01516148 https://doi.org/10.1007/s00300-016-2001-3 |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Polar Biology Southern Ocean |
genre_facet |
Antarc* Antarctic Polar Biology Southern Ocean |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01516148 Polar Biology, 2017, 40 (4), pp.787-797. ⟨10.1007/s00300-016-2001-3⟩ http://link.springer.com/article/10.1007%2Fs00300-016-2001-3 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-016-2001-3 hal-01516148 https://hal.science/hal-01516148 doi:10.1007/s00300-016-2001-3 |
op_doi |
https://doi.org/10.1007/s00300-016-2001-3 |
container_title |
Polar Biology |
container_volume |
40 |
container_issue |
4 |
container_start_page |
787 |
op_container_end_page |
797 |
_version_ |
1790593511881441280 |