Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling
International audience Disentangling the demographic processes that determine the genetic structure of a given species is a fundamental question in conservation and management. In the present study, the population structure of the European eel was examined with a multidisciplinary approach combining...
Published in: | Molecular Phylogenetics and Evolution |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2011
|
Subjects: | |
Online Access: | https://hal.inrae.fr/hal-02643645 https://doi.org/10.1016/j.ympev.2010.11.019 |
id |
ftunivsavoie:oai:HAL:hal-02643645v1 |
---|---|
record_format |
openpolar |
spelling |
ftunivsavoie:oai:HAL:hal-02643645v1 2024-05-12T07:52:59+00:00 Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling Pujolar, José Martin Bevacqua, Danièle Andrello, Marco Capoccioni, Fabrizio Ciccotti, Eleonora de Leo, Giulio A. Zane, Lorenzo Dipartimento di Biologia Università degli Studi di Padova = University of Padua (Unipd) Dipartimento di Scienze Ambientali Università degli studi di Parma = University of Parma (UNIPR) Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Università degli Studi di Roma Tor Vergata Roma = University of Rome Tor Vergata 2011 https://hal.inrae.fr/hal-02643645 https://doi.org/10.1016/j.ympev.2010.11.019 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2010.11.019 hal-02643645 https://hal.inrae.fr/hal-02643645 doi:10.1016/j.ympev.2010.11.019 PRODINRA: 369531 WOS: 000287888700006 ISSN: 1055-7903 EISSN: 1095-9513 Molecular Phylogenetics and Evolution https://hal.inrae.fr/hal-02643645 Molecular Phylogenetics and Evolution, 2011, 58 (2), pp.198-206. ⟨10.1016/j.ympev.2010.11.019⟩ adult eels anguilla anguilla european eel genetic patchiness population dynamics modelling [SDV]Life Sciences [q-bio] info:eu-repo/semantics/article Journal articles 2011 ftunivsavoie https://doi.org/10.1016/j.ympev.2010.11.019 2024-04-18T00:31:25Z International audience Disentangling the demographic processes that determine the genetic structure of a given species is a fundamental question in conservation and management. In the present study, the population structure of the European eel was examined with a multidisciplinary approach combining the fields of molecular genetics and population dynamics modelling. First, we analyzed a total of 346 adult specimens of known age collected in three separate sample sites using a large panel of 22 EST-linked microsatellite loci. Second, we developed a European eel-specific model to unravel the demographic mechanisms that can produce the level of genetic differentiation estimated by molecular markers. This is the first study that reveals a pattern of genetic patchiness in maturing adults of the European eel. A highly significant genetic differentiation was observed among samples that did not follow an Isolation-by-Distance or Isolation-by-Time pattern. The observation of genetic patchiness in adults is likely to result from a limited parental contribution to each spawning event as suggested by our modelling approach. The value of genetic differentiation found is predicted by the model when reproduction occurs in a limited number of spawning events isolated from each other in time or space, with an average of 130-375 breeders in each spawning event. Unpredictability in spawning success may have important consequences for the life-history evolution of the European eel, including a bet-hedging strategy (distributing reproductive efforts over time) which could in turn guarantee successful reproduction of some adults. Article in Journal/Newspaper Anguilla anguilla European eel Université Savoie Mont Blanc: HAL Molecular Phylogenetics and Evolution 58 2 198 206 |
institution |
Open Polar |
collection |
Université Savoie Mont Blanc: HAL |
op_collection_id |
ftunivsavoie |
language |
English |
topic |
adult eels anguilla anguilla european eel genetic patchiness population dynamics modelling [SDV]Life Sciences [q-bio] |
spellingShingle |
adult eels anguilla anguilla european eel genetic patchiness population dynamics modelling [SDV]Life Sciences [q-bio] Pujolar, José Martin Bevacqua, Danièle Andrello, Marco Capoccioni, Fabrizio Ciccotti, Eleonora de Leo, Giulio A. Zane, Lorenzo Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
topic_facet |
adult eels anguilla anguilla european eel genetic patchiness population dynamics modelling [SDV]Life Sciences [q-bio] |
description |
International audience Disentangling the demographic processes that determine the genetic structure of a given species is a fundamental question in conservation and management. In the present study, the population structure of the European eel was examined with a multidisciplinary approach combining the fields of molecular genetics and population dynamics modelling. First, we analyzed a total of 346 adult specimens of known age collected in three separate sample sites using a large panel of 22 EST-linked microsatellite loci. Second, we developed a European eel-specific model to unravel the demographic mechanisms that can produce the level of genetic differentiation estimated by molecular markers. This is the first study that reveals a pattern of genetic patchiness in maturing adults of the European eel. A highly significant genetic differentiation was observed among samples that did not follow an Isolation-by-Distance or Isolation-by-Time pattern. The observation of genetic patchiness in adults is likely to result from a limited parental contribution to each spawning event as suggested by our modelling approach. The value of genetic differentiation found is predicted by the model when reproduction occurs in a limited number of spawning events isolated from each other in time or space, with an average of 130-375 breeders in each spawning event. Unpredictability in spawning success may have important consequences for the life-history evolution of the European eel, including a bet-hedging strategy (distributing reproductive efforts over time) which could in turn guarantee successful reproduction of some adults. |
author2 |
Dipartimento di Biologia Università degli Studi di Padova = University of Padua (Unipd) Dipartimento di Scienze Ambientali Università degli studi di Parma = University of Parma (UNIPR) Laboratoire d'Ecologie Alpine (LECA) Université Joseph Fourier - Grenoble 1 (UJF)-Université Savoie Mont Blanc (USMB Université de Savoie Université de Chambéry )-Centre National de la Recherche Scientifique (CNRS) Università degli Studi di Roma Tor Vergata Roma = University of Rome Tor Vergata |
format |
Article in Journal/Newspaper |
author |
Pujolar, José Martin Bevacqua, Danièle Andrello, Marco Capoccioni, Fabrizio Ciccotti, Eleonora de Leo, Giulio A. Zane, Lorenzo |
author_facet |
Pujolar, José Martin Bevacqua, Danièle Andrello, Marco Capoccioni, Fabrizio Ciccotti, Eleonora de Leo, Giulio A. Zane, Lorenzo |
author_sort |
Pujolar, José Martin |
title |
Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
title_short |
Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
title_full |
Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
title_fullStr |
Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
title_full_unstemmed |
Genetic patchiness in European eel adults evidenced by molecular genetics and population dynamics modelling |
title_sort |
genetic patchiness in european eel adults evidenced by molecular genetics and population dynamics modelling |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal.inrae.fr/hal-02643645 https://doi.org/10.1016/j.ympev.2010.11.019 |
genre |
Anguilla anguilla European eel |
genre_facet |
Anguilla anguilla European eel |
op_source |
ISSN: 1055-7903 EISSN: 1095-9513 Molecular Phylogenetics and Evolution https://hal.inrae.fr/hal-02643645 Molecular Phylogenetics and Evolution, 2011, 58 (2), pp.198-206. ⟨10.1016/j.ympev.2010.11.019⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.ympev.2010.11.019 hal-02643645 https://hal.inrae.fr/hal-02643645 doi:10.1016/j.ympev.2010.11.019 PRODINRA: 369531 WOS: 000287888700006 |
op_doi |
https://doi.org/10.1016/j.ympev.2010.11.019 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
58 |
container_issue |
2 |
container_start_page |
198 |
op_container_end_page |
206 |
_version_ |
1798839651704766464 |