Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae).
King penguins have successfully colonized cold ecosystems of the southern hemisphere by developing physiological mechanisms that are not well understood. The aim of this study was to investigate, at different integrative levels from the gene to the whole animal, the functional responses developed by...
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Format: | Doctoral or Postdoctoral Thesis |
Language: | French |
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2011
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Online Access: | https://theses.hal.science/tel-00755130 https://theses.hal.science/tel-00755130/document https://theses.hal.science/tel-00755130/file/TH2011_Degletagne_Cyril.pdf |
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ftunivlyon1:oai:HAL:tel-00755130v1 2024-05-12T08:06:32+00:00 Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). Acclimatations des manchots aux contraintes de l’environnement polaire : approches transcriptomique et intégrative sur le manchot Royal (Aptenodytes patagonicus) et le manchot Adélie (Pygoscelis adeliae) Dégletagne, Cyril Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Claude Duchamp Mireille Raccurt 2011-12-16 https://theses.hal.science/tel-00755130 https://theses.hal.science/tel-00755130/document https://theses.hal.science/tel-00755130/file/TH2011_Degletagne_Cyril.pdf fr fre HAL CCSD NNT: 2011LYO10348 tel-00755130 https://theses.hal.science/tel-00755130 https://theses.hal.science/tel-00755130/document https://theses.hal.science/tel-00755130/file/TH2011_Degletagne_Cyril.pdf info:eu-repo/semantics/OpenAccess https://theses.hal.science/tel-00755130 Sciences agricoles. Université Claude Bernard - Lyon I, 2011. Français. ⟨NNT : 2011LYO10348⟩ Microarray Integrative physiology Metabolism Oxydative stress Growth Thermogenesis King penguin Adélie penguin Transcriptomic analysis Puces à ADN Physiologie intégrative Métabolisme énergétique Stress oxydant Croissance Thermogenèse Manchot Royal Manchot Adélie Analyse du transcriptome [SDV.SA]Life Sciences [q-bio]/Agricultural sciences info:eu-repo/semantics/doctoralThesis Theses 2011 ftunivlyon1 2024-04-18T01:22:50Z King penguins have successfully colonized cold ecosystems of the southern hemisphere by developing physiological mechanisms that are not well understood. The aim of this study was to investigate, at different integrative levels from the gene to the whole animal, the functional responses developed by penguins to overcome polar constrains. We focused on acclimatization mechanisms enabling the first departure to sea of king penguin immatures and the rapid growth of Adélie penguin chicks.To explore differentially expressed genes in pectoralis muscle during penguin’s first sea acclimatization, we used Affymetrix microarrays design for chicken. We first set up and validated a new method to analyze heterologous hybridization transcriptomic profiles. We highlighted a selective shift in metabolic pathways favoring the use of lipids as fuel to sustain highly energetic needs imposed by marine life-style. Our results revealed a development of a global antioxidant response, potential consequences of penguin marine life-style that imposes repeated dives under apnea.Secondly, our integrative study on Adélie penguin’s chick revealed the development of molecular and cellular mechanisms which sustain an original strategy by first allocating most of the energy to growth and then promoting thermogenic processes.Our results showed that both king and Adélie penguins develop complex and coordinated physiological responses to energetic constraints highlighting their high phenotypic plasticity. King penguins have successfully colonized cold ecosystems of the southern hemisphere by developing physiological mechanisms that are not well understood. The aim of this study was to investigate, at different integrative levels from the gene to the whole animal, the functional responses developed by penguins to overcome polar constrains. We focused on acclimatization mechanisms enabling the first departure to sea of king penguin immatures and the rapid growth of Adélie penguin chicks.To explore differentially expressed genes in pectoralis ... Doctoral or Postdoctoral Thesis King Penguins Pygoscelis adeliae HAL Lyon 1 (University Claude Bernard Lyon 1) Manchot ENVELOPE(141.400,141.400,-66.817,-66.817) Manchots ENVELOPE(141.397,141.397,-66.811,-66.811) |
institution |
Open Polar |
collection |
HAL Lyon 1 (University Claude Bernard Lyon 1) |
op_collection_id |
ftunivlyon1 |
language |
French |
topic |
Microarray Integrative physiology Metabolism Oxydative stress Growth Thermogenesis King penguin Adélie penguin Transcriptomic analysis Puces à ADN Physiologie intégrative Métabolisme énergétique Stress oxydant Croissance Thermogenèse Manchot Royal Manchot Adélie Analyse du transcriptome [SDV.SA]Life Sciences [q-bio]/Agricultural sciences |
spellingShingle |
Microarray Integrative physiology Metabolism Oxydative stress Growth Thermogenesis King penguin Adélie penguin Transcriptomic analysis Puces à ADN Physiologie intégrative Métabolisme énergétique Stress oxydant Croissance Thermogenèse Manchot Royal Manchot Adélie Analyse du transcriptome [SDV.SA]Life Sciences [q-bio]/Agricultural sciences Dégletagne, Cyril Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
topic_facet |
Microarray Integrative physiology Metabolism Oxydative stress Growth Thermogenesis King penguin Adélie penguin Transcriptomic analysis Puces à ADN Physiologie intégrative Métabolisme énergétique Stress oxydant Croissance Thermogenèse Manchot Royal Manchot Adélie Analyse du transcriptome [SDV.SA]Life Sciences [q-bio]/Agricultural sciences |
description |
King penguins have successfully colonized cold ecosystems of the southern hemisphere by developing physiological mechanisms that are not well understood. The aim of this study was to investigate, at different integrative levels from the gene to the whole animal, the functional responses developed by penguins to overcome polar constrains. We focused on acclimatization mechanisms enabling the first departure to sea of king penguin immatures and the rapid growth of Adélie penguin chicks.To explore differentially expressed genes in pectoralis muscle during penguin’s first sea acclimatization, we used Affymetrix microarrays design for chicken. We first set up and validated a new method to analyze heterologous hybridization transcriptomic profiles. We highlighted a selective shift in metabolic pathways favoring the use of lipids as fuel to sustain highly energetic needs imposed by marine life-style. Our results revealed a development of a global antioxidant response, potential consequences of penguin marine life-style that imposes repeated dives under apnea.Secondly, our integrative study on Adélie penguin’s chick revealed the development of molecular and cellular mechanisms which sustain an original strategy by first allocating most of the energy to growth and then promoting thermogenic processes.Our results showed that both king and Adélie penguins develop complex and coordinated physiological responses to energetic constraints highlighting their high phenotypic plasticity. King penguins have successfully colonized cold ecosystems of the southern hemisphere by developing physiological mechanisms that are not well understood. The aim of this study was to investigate, at different integrative levels from the gene to the whole animal, the functional responses developed by penguins to overcome polar constrains. We focused on acclimatization mechanisms enabling the first departure to sea of king penguin immatures and the rapid growth of Adélie penguin chicks.To explore differentially expressed genes in pectoralis ... |
author2 |
Laboratoire d'Ecologie des Hydrosystèmes Naturels et Anthropisés (LEHNA) Université Claude Bernard Lyon 1 (UCBL) Université de Lyon-Université de Lyon-École Nationale des Travaux Publics de l'État (ENTPE)-Centre National de la Recherche Scientifique (CNRS) Université Claude Bernard - Lyon I Claude Duchamp Mireille Raccurt |
format |
Doctoral or Postdoctoral Thesis |
author |
Dégletagne, Cyril |
author_facet |
Dégletagne, Cyril |
author_sort |
Dégletagne, Cyril |
title |
Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
title_short |
Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
title_full |
Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
title_fullStr |
Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
title_full_unstemmed |
Penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in King (Aptenodytes patagonicus) and Adélie penguins (Pygoscelis adeliae). |
title_sort |
penguin acclimatization to polar environmental constraints : a transcriptomic and integrative study in king (aptenodytes patagonicus) and adélie penguins (pygoscelis adeliae). |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://theses.hal.science/tel-00755130 https://theses.hal.science/tel-00755130/document https://theses.hal.science/tel-00755130/file/TH2011_Degletagne_Cyril.pdf |
long_lat |
ENVELOPE(141.400,141.400,-66.817,-66.817) ENVELOPE(141.397,141.397,-66.811,-66.811) |
geographic |
Manchot Manchots |
geographic_facet |
Manchot Manchots |
genre |
King Penguins Pygoscelis adeliae |
genre_facet |
King Penguins Pygoscelis adeliae |
op_source |
https://theses.hal.science/tel-00755130 Sciences agricoles. Université Claude Bernard - Lyon I, 2011. Français. ⟨NNT : 2011LYO10348⟩ |
op_relation |
NNT: 2011LYO10348 tel-00755130 https://theses.hal.science/tel-00755130 https://theses.hal.science/tel-00755130/document https://theses.hal.science/tel-00755130/file/TH2011_Degletagne_Cyril.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1798849028420534272 |