Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds
The purpose of conservation genetics is to protect both genetic diversity and the processes that shaped it, and to understand them. Procellariiformes (shearwaters, petrels and albatrosses) represent many species with high dispersal capacities but a strong philopatric behavior and with strong conserv...
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Online Access: | https://theses.hal.science/tel-02995731 https://theses.hal.science/tel-02995731/document https://theses.hal.science/tel-02995731/file/2019Torres139233.pdf |
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ftunivrochelle:oai:HAL:tel-02995731v1 2024-02-11T10:06:47+01:00 Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds Phylogéographie et évolution moléculaire chez les Procellariiformes : apport à la diversification des oiseaux marins Torres, Lucas Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Université de La Rochelle Eric Pante Vincent Bretagnolle 2019-06-14 https://theses.hal.science/tel-02995731 https://theses.hal.science/tel-02995731/document https://theses.hal.science/tel-02995731/file/2019Torres139233.pdf fr fre HAL CCSD NNT: 2019LAROS023 tel-02995731 https://theses.hal.science/tel-02995731 https://theses.hal.science/tel-02995731/document https://theses.hal.science/tel-02995731/file/2019Torres139233.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-02995731 Génétique animale. Université de La Rochelle, 2019. Français. ⟨NNT : 2019LAROS023⟩ Procellariiformes Conservation genetics Differentiation Genetic duplication Mitochondrial DNA Génétique de la conservation Différenciation Duplication génétique ADN mitochondrial [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics info:eu-repo/semantics/doctoralThesis Theses 2019 ftunivrochelle 2024-01-23T23:34:51Z The purpose of conservation genetics is to protect both genetic diversity and the processes that shaped it, and to understand them. Procellariiformes (shearwaters, petrels and albatrosses) represent many species with high dispersal capacities but a strong philopatric behavior and with strong conservation needs. We conducted a multi-locus study on the Audubon shearwater complex, Puffinus lherminieri, from the North Atlantic and its two sister lineages in the Indian Ocean. We first showed that the genetic markers used here, and typically used to study the phylogeography of seabirds, were subject to introgression, hybridization, heteroplasmy, and the duplication and pseudogenisation of some mitochondrial genes. All of these phenomena have an impact on the quality and quantity of information produced by these markers. We led a comparative study and showed how best to manage some of these data problems and their treatment. We have also investigated the composition of the mitochondrial duplicated region and show that it have a complex evolution within the Procellariiformes and may have an influence on their biology and conservation. Finally, we have shown the influence of continental barriers but especially of sea surface temperature on the differentiation of seabirds. We also uncovered a structuration of the shearwater complex that needed to define new conservation priorities. La génétique de la conservation a pour but de protéger à la fois la diversité génétique et les processus qui l’ont forgée, et nécessite de comprendre ces derniers. Les Procellariiformes (puffins, pétrels et albatros) représentent de nombreuses espèces avec de hautes capacités de dispersion mais un fort comportement philopatrique et avec un fort enjeu de conservation. Nous avons mené une étude multi-locus sur le complexe du puffin d’Audubon, Puffinus lherminieri, du nord de l’Atlantique et ses deux lignées-sœurs en océan Indien. Nous avons d’abord montré que les marqueurs génétiques appliqués ici, et typiquement utilisés pour étudier la ... Doctoral or Postdoctoral Thesis North Atlantic HAL - Université de La Rochelle Indian Pétrels ENVELOPE(140.017,140.017,-66.667,-66.667) |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
French |
topic |
Procellariiformes Conservation genetics Differentiation Genetic duplication Mitochondrial DNA Génétique de la conservation Différenciation Duplication génétique ADN mitochondrial [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics |
spellingShingle |
Procellariiformes Conservation genetics Differentiation Genetic duplication Mitochondrial DNA Génétique de la conservation Différenciation Duplication génétique ADN mitochondrial [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics Torres, Lucas Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
topic_facet |
Procellariiformes Conservation genetics Differentiation Genetic duplication Mitochondrial DNA Génétique de la conservation Différenciation Duplication génétique ADN mitochondrial [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics |
description |
The purpose of conservation genetics is to protect both genetic diversity and the processes that shaped it, and to understand them. Procellariiformes (shearwaters, petrels and albatrosses) represent many species with high dispersal capacities but a strong philopatric behavior and with strong conservation needs. We conducted a multi-locus study on the Audubon shearwater complex, Puffinus lherminieri, from the North Atlantic and its two sister lineages in the Indian Ocean. We first showed that the genetic markers used here, and typically used to study the phylogeography of seabirds, were subject to introgression, hybridization, heteroplasmy, and the duplication and pseudogenisation of some mitochondrial genes. All of these phenomena have an impact on the quality and quantity of information produced by these markers. We led a comparative study and showed how best to manage some of these data problems and their treatment. We have also investigated the composition of the mitochondrial duplicated region and show that it have a complex evolution within the Procellariiformes and may have an influence on their biology and conservation. Finally, we have shown the influence of continental barriers but especially of sea surface temperature on the differentiation of seabirds. We also uncovered a structuration of the shearwater complex that needed to define new conservation priorities. La génétique de la conservation a pour but de protéger à la fois la diversité génétique et les processus qui l’ont forgée, et nécessite de comprendre ces derniers. Les Procellariiformes (puffins, pétrels et albatros) représentent de nombreuses espèces avec de hautes capacités de dispersion mais un fort comportement philopatrique et avec un fort enjeu de conservation. Nous avons mené une étude multi-locus sur le complexe du puffin d’Audubon, Puffinus lherminieri, du nord de l’Atlantique et ses deux lignées-sœurs en océan Indien. Nous avons d’abord montré que les marqueurs génétiques appliqués ici, et typiquement utilisés pour étudier la ... |
author2 |
Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Université de La Rochelle Eric Pante Vincent Bretagnolle |
format |
Doctoral or Postdoctoral Thesis |
author |
Torres, Lucas |
author_facet |
Torres, Lucas |
author_sort |
Torres, Lucas |
title |
Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
title_short |
Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
title_full |
Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
title_fullStr |
Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
title_full_unstemmed |
Phylogeography and molecular evolution in Procellariiformes : input to the diversification of seabirds |
title_sort |
phylogeography and molecular evolution in procellariiformes : input to the diversification of seabirds |
publisher |
HAL CCSD |
publishDate |
2019 |
url |
https://theses.hal.science/tel-02995731 https://theses.hal.science/tel-02995731/document https://theses.hal.science/tel-02995731/file/2019Torres139233.pdf |
long_lat |
ENVELOPE(140.017,140.017,-66.667,-66.667) |
geographic |
Indian Pétrels |
geographic_facet |
Indian Pétrels |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
https://theses.hal.science/tel-02995731 Génétique animale. Université de La Rochelle, 2019. Français. ⟨NNT : 2019LAROS023⟩ |
op_relation |
NNT: 2019LAROS023 tel-02995731 https://theses.hal.science/tel-02995731 https://theses.hal.science/tel-02995731/document https://theses.hal.science/tel-02995731/file/2019Torres139233.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1790604737702264832 |