7 results on '"Elodie Portanier"'
Search Results
2. New insights into the past and recent evolutionary history of the Corsican mouflon (Ovis gmelini musimon) to inform its conservation
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Cécile Kaerle, Gilles Bourgoin, Pauline Gélin, Elodie Portanier, Pierre Benedetti, Sébastien Devillard, Pascale Chevret, Filippo Barbanera, Mathieu Garel, Guillaume Queney, Frédéric Sanchis, Office National de la Chasse et de la Faune Sauvage (ONCFS), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS), Office français de la biodiversité (OFB), Dipartimento di Biologia, University of Pisa - Università di Pisa, Antagene - Animal Genomics Laboratory, Département écologie évolutive [LBBE], and Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL)
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Population ,Biodiversity ,Ungulates ,Subspecies ,[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics, Phylogenetics and taxonomy ,[SDV.BA.ZV]Life Sciences [q-bio]/Animal biology/Vertebrate Zoology ,Genetics ,education ,Approximate Bayesian computation ,Historic faunal relocation ,Human-mediated introduction ,Management units ,Phylogeography ,Ovis ,Ecology, Evolution, Behavior and Systematics ,education.field_of_study ,[SDV.GEN.GPO]Life Sciences [q-bio]/Genetics/Populations and Evolution [q-bio.PE] ,biology ,[SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] ,biology.organism_classification ,language.human_language ,Mouflon ,Evolutionary biology ,Genetic structure ,language ,Biological dispersal ,[SDE.BE]Environmental Sciences/Biodiversity and Ecology ,Corsican - Abstract
International audience; Human-mediated species dispersal across the Mediterranean stretches back at least 10,000 years and has left an indelible stamp on present-day biodiversity. Believed to be a descendant of the Asiatic mouflon (Ovis gmelini gmelinii), the Corsican mouflon (O. g. musimon) was translocated during the Neolithic as ancestral livestock by humans migrating from the Fertile Crescent to the Western Mediterranean. Today, two geographically limited and disconnected populations can be found in Corsica. Whether they originated from distinct founders or one ancestral population that later split remains unknown, although such information is pivotal for the species' management on the island. We genotyped 109 and 176 individuals at the Cytochrome-b gene and 16 loci of the microsatellite DNA, respectively, to gain insights into the natural history of the Corsican mouflon. We found evidence confirming that the Asiatic was the ancestor of the Corsican mouflon, which should thus be unvaryingly referred to as O. g. musimon, i.e. as a subspecies of the Asiatic mouflon. Haplotype divergence dating and the investigation of genetic structure highlighted a strong and ancient genetic differentiation between the two Corsican populations. Approximate Bayesian Computation pointed to the introduction of a single group of founders as the most reliable scenario for the origin of the entire Corsican population. Later, this ancestral stock would have decreased in number, facing genetic bottlenecks and eventually resulting in two divergent demes. Splitting most likely occurred several hundred years ago. Their shared past notwithstanding, we discuss whether the two relic Corsican mouflon populations should be now considered as distinct management units.
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- 2021
3. Reproductive females and young mouflon (Ovis gmelini musimon × Ovis sp.) in poor body condition are the main spreaders of gastrointestinal parasites
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Christian Itty, Mathieu Garel, Marie-Thérèse Poirel, Anne Cockenpot, Marie-Pierre Callait-Cardinal, Gilles Bourgoin, Elodie Portanier, Jeanne Duhayer, Slimania Benabed, VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon, Biodémographie évolutive, Département écologie évolutive [LBBE], Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)-Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), and Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)
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0106 biological sciences ,0303 health sciences ,education.field_of_study ,Ungulate ,biology ,Host (biology) ,Population ,Zoology ,biology.organism_classification ,010603 evolutionary biology ,01 natural sciences ,Poor body condition ,Eimeria ,Mouflon ,03 medical and health sciences ,Infectious Diseases ,Nematode ,[SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/Parasitology ,Animal Science and Zoology ,Parasitology ,education ,Ovis ,030304 developmental biology - Abstract
Several individual, environmental and parasitic factors can influence the impacts of parasites on host's fitness and on host's ability to transmit these parasites to new hosts. Identifying these factors and the individuals who play a greater role in parasite transmission is of main concern for the development of parasite control strategies. In the present study, we aimed to describe the diversity of gastrointestinal parasites and to identify the individual factors influencing the faecal spreading of parasites in a free-ranging population of Mediterranean mouflon. From the analysis of 433 faecal samples, we found Eimeria spp. and gastrointestinal strongyles (GIS) were the most common parasites (>94%). The faecal oocyst counts of Eimeria spp. were the highest during the first years of life. It was 1.6 times higher in females than in males and 2.5 times higher in individuals in poor than in good body condition. Similarly, the faecal egg count of GIS was higher in females and decreased with age, but only in males. Finally, reproductive females had GIS faecal egg count values 2.6 times higher than non-reproductive females. Management strategies of parasites should thus primarily focus on reproductive females and young individuals in poor body condition as they represent the main contamination source of the environment.
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- 2021
4. Species delineation and genetic structure of two
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Morgane, Tidière, Elodie, Portanier, Stéphanie, Jacquet, Steven M, Goodman, Gildas, Monnier, Gregory, Beuneux, Jean-François, Desmet, Cécile, Kaerle, Guillaume, Queney, Michel, Barataud, and Dominique, Pontier
- Abstract
Cryptic species diversity is known to be common in bats but remains challenging to study in these mammals, whose natural history traits render their sampling and monitoring challenging. For these animals, indirect genetic approaches provide a powerful tool to gain insight into the evolutionary history and ecology of cryptic bat species. The speciation history of the polyphyletic
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- 2021
5. Reproductive females and young mouflon (
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Gilles, Bourgoin, Elodie, Portanier, Marie-Thérèse, Poirel, Christian, Itty, Jeanne, Duhayer, Slimania, Benabed, Anne, Cockenpot, Marie-Pierre, Callait-Cardinal, and Mathieu, Garel
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Feces ,Sheep ,Reproduction ,Animals ,Sheep Diseases ,Female ,Intestinal Diseases, Parasitic ,Sheep, Domestic - Abstract
Several individual, environmental and parasitic factors can influence the impacts of parasites on host's fitness and on host's ability to transmit these parasites to new hosts. Identifying these factors and the individuals who play a greater role in parasite transmission is of main concern for the development of parasite control strategies. In the present study, we aimed to describe the diversity of gastrointestinal parasites and to identify the individual factors influencing the faecal spreading of parasites in a free-ranging population of Mediterranean mouflon. From the analysis of 433 faecal samples, we found Eimeria spp. and gastrointestinal strongyles (GIS) were the most common parasites (94%). The faecal oocyst counts of Eimeria spp. were the highest during the first years of life. It was 1.6 times higher in females than in males and 2.5 times higher in individuals in poor than in good body condition. Similarly, the faecal egg count of GIS was higher in females and decreased with age, but only in males. Finally, reproductive females had GIS faecal egg count values 2.6 times higher than non-reproductive females. Management strategies of parasites should thus primarily focus on reproductive females and young individuals in poor body condition as they represent the main contamination source of the environment.
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- 2021
6. Genetic resistance against parasitism in female Mediterranean mouflon: Involvement of both neutral and adaptive genetic diversity
- Author
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Elodie Portanier, Garel, M., Devillard, S., Maillard, D., Poissant, J., Maxime Galan, Benabed, S., Poirel, M. T., Duhayer, J., Itty, C., Gilles Bourgoin, Centre de Biologie pour la Gestion des Populations (UMR CBGP), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Laboratoire de Biométrie et Biologie Evolutive - UMR 5558 (LBBE), Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut National de Recherche en Informatique et en Automatique (Inria)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Centre National de la Recherche Scientifique (CNRS)
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[SDV.BDD]Life Sciences [q-bio]/Development Biology ,ComputingMilieux_MISCELLANEOUS - Abstract
National audience
7. Genetic structure and population connectivity of Peltospira smaragdina along the north MAR: a next-generation sequencing approach
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Elodie Portanier
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15. Life on land - Abstract
Resilience capacities of hydrothermal vent species are largely dependent on their dispersal abilities. Characterizing gene flow and identifying biotic and/or abiotic factors impacting population exchanges are thus of prime importance. In this study we focused on Peltospira smaragdina, a gastropod species inhabiting hydrothermal vent chimneys along the Mid-Atlantic Ridge (MAR). We genotyped 237 individuals from 6 hydrothermal fields (23°N to 45°N) at 12 522 SNPs using a double-digest restriction-site associated DNA sequencing (ddRAD). Using population genetics clustering approaches, three genetic groups were detected. These groups corresponded to the Moytirra vent field, fields of the Azorean triple junction, and the deeper sites of TAG, Snake-Pit and Broken-Spur. Fst values were in accordance with such results. Half of the individuals of Rainbow were however more related to the third and most southern group. Ancestry coefficient confirmed local admixture between the Lucky-Strike and TAG/Snake-Pit/Broken-Spur genetic clusters at Rainbow. These results indicated that (1) gene flow is greatly impeded between Moytirra and the other fields sampled, (2) TAG, Snake-Pit and Broken-Spur may be panmictic, and (3) the Rainbow field may represent a putative ‘hybrid’ zone receiving migrants from TAG/Snake-Pit/Broken-Spur at a rather low rate. Several hypotheses might explain genetic breaks between vent fields, such as the presence of topographical barriers (fracture zones) or decreasing depth near to the Azorean Triple Junction. Genetic differences observed along the MAR between Peltospira smaragdina and other species highlighted the need of performing comparative studies on several species having contrasted life-history traits, as planned in the iAtlantic WP1.
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