Search

Your search keyword '"Dupont-Nivet, Mathilde"' showing total 475 results
Start Over Author "Dupont-Nivet, Mathilde"
475 results on '"Dupont-Nivet, Mathilde"'

3. Realised genetic gains on growth, survival, feed conversion ratio and quality traits after ten generations of multi-trait selection in rainbow trout Oncorhynchus mykiss, fed a standard diet or a “future” fish-free and soy-free diet

Author

Vandeputte, Marc, Corraze, Geneviève, Doerflinger, Jérôme, Enez, Florian, Clota, Frédéric, Terrier, Frédéric, Horat, Mathilde, Larroquet, Laurence, Petit, Vincent, Haffray, Pierrick, Skiba-Cassy, Sandrine, and Dupont-Nivet, Mathilde

Published
2022
Full Text
View/download PDF

8. New alternative ingredients and genetic selection are the next game changers in rainbow trout nutrition: a metabolomics appraisal

Author

Roques, Simon, primary, Deborde, Catherine, additional, Skiba-Cassy, Sandrine, additional, Médale, Françoise, additional, Dupont-Nivet, Mathilde, additional, Lefevre, Florence, additional, Bugeon, Jérome, additional, Labbé, Laurent, additional, Marchand, Yann, additional, Moing, Annick, additional, and Fauconneau, Benoit, additional

Published
2023
Full Text
View/download PDF

12. Interaction between genetics and inulin affects host metabolism in rainbow trout fed a sustainable all plant-based diet

Author

Lokesh, Jep, primary, Delaygues, Marine, additional, Defaix, Raphaël, additional, Le Bechec, Mickael, additional, Pigot, Thierry, additional, Dupont Nivet, Mathilde, additional, Kerneis, Thierry, additional, Labbé, Laurent, additional, Goardon, Lionel, additional, Terrier, Frédéric, additional, Panserat, Stéphane, additional, and Ricaud, Karine, additional

Published
2023
Full Text
View/download PDF

14. Genetic architecture of acute hyperthermia resistance in juvenile rainbow trout (Oncorhynchus mykiss) and genetic correlations with production traits

Author

Lagarde, Henri, primary, Lallias, Delphine, additional, Patrice, Pierre, additional, Prchal, Martin, additional, François, Yoannah, additional, D’Ambrosio, Jonathan, additional, Segret, Emilien, additional, Acin-Perez, Ana, additional, Cachelou, Frederic, additional, Haffray, Pierrick, additional, Dehaullon, Audrey, additional, Dupont-Nivet, Mathilde, additional, and Phocas, Florence, additional

Published
2022
Full Text
View/download PDF

19. Impact de la durée de stockage au froid des oeufs embryonnés de truite arc-en-ciel

Author

Harte, Elodie, Marchand, Michael, Terrenne, Tina, Goardon, Lionel, Labbé, Laurent, Bugeon, Jérôme, Gabillard, Jean-Charles, Hue, Isabelle, Lefèvre, Florence, Rescan, Pierre-Yves, Perquis, Aline, Panserat, Stéphane, Houssier, Marianne, Marandel, Lucie, Leguen, Isabelle, Dupont-Nivet, Mathilde, Lallias, Delphine, Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Pisciculture Expérimentale INRAE des Monts d'Arrée (PEIMA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire de Physiologie et Génomique des Poissons (LPGP), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Nutrition, Métabolisme, Aquaculture (NuMéA), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire Service d' Experimentations Aquacoles [Palavas les Flots] (LSEA MARBEC), MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM), FEAMP – projet EpiCOOL n° PFEA470018FA1000015, and projet EpiCOOL

Subjects
Genetique, [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, oeuf embryonne, stockage au froid, truite arc en ciel
Abstract

International audience; L’objectif général du projet EpiCOOL est d’étudier les conséquences du stockage au froid (3°C) des œufs embryonnés de truite arc-en-ciel, l’espèce piscicole majeure de la filière française. En effet, des études récentes ont montré que l’exposition précoce à des stimuli environnementaux (tels que l’hypoxie ou la température) pouvait avoir un impact sur la physiologie, la croissance, le métabolisme et la nutrition des poissons à plus ou moins long terme. Plusieurs mécanismes peuvent être sous-jacents à cette programmation, parmi eux les modifications des patrons d’expression de gènes et les régulations épigénétiques comme par exemple la méthylation de l’ADN. Dans ce projet, nous testerons donc l’effet d’un passage des œufs au stade oeillé à basse température (3°C au lieu de 11°C) pendant 15 jours sur plusieurs caractères d’intérêt aquacole, à savoir les performances zootechniques (survie, croissance et malformations), le métabolisme intermédiaire, le développement du muscle et les qualités, ainsi que la résistance à des stress ultérieurs. Nous essaierons également de comprendre par quels mécanismes moléculaires l’exposition précoce au froid peut impacter la physiologie des poissons ultérieurement, en analysant les patrons d’expression génique et la méthylation de l’ADN (approches LUMA et RRBS). La finalité est d’utiliser la programmation précoce comme levier pour mieux maîtriser les performances des animaux à long terme. Ce projet se basera sur l’utilisation d’un modèle biologique tout à fait pertinent, deux lignées expérimentales divergentes pour la teneur en lipides du muscle : lignée grasse (LG) et lignée maigre (LM). En effet, elles ont montré une utilisation différente des aliments et possèdent un métabolisme intermédiaire et énergétique bien différencié. Il est donc possible qu’elles réagissent différemment à l’effet du froid pendant l’incubation. L’utilisation de ces deux lignées divergentes permettra de tester l’impact du fond génétique sur les réponses observées, et ainsi d’aboutir à une compréhension plus fine des mécanismes sous-jacents.Financement : FEAMP (Fonds Européen pour les Affaires Maritimes et la Pêche) – projet EpiCOOL numéro PFEA470018FA1000015

Published
2022

21. Development of a High-Density 665 K SNP Array for Rainbow Trout Genome-Wide Genotyping

Author

Bernard, Maria, primary, Dehaullon, Audrey, additional, Gao, Guangtu, additional, Paul, Katy, additional, Lagarde, Henri, additional, Charles, Mathieu, additional, Prchal, Martin, additional, Danon, Jeanne, additional, Jaffrelo, Lydia, additional, Poncet, Charles, additional, Patrice, Pierre, additional, Haffray, Pierrick, additional, Quillet, Edwige, additional, Dupont-Nivet, Mathilde, additional, Palti, Yniv, additional, Lallias, Delphine, additional, and Phocas, Florence, additional

Published
2022
Full Text
View/download PDF

22. Genome-wide association study and genomic prediction of tolerance to acute hypoxia in rainbow trout

Author

Prchal, M, D’ambrosio, Jonathan, Lagarde, Henri, Lallias, Delphine, Patrice, P, François, Y, Poncet, Charles, Desgranges, A, Haffray, P, Dupont-Nivet, Mathilde, Phocas, Florence, University of South Bohemia, Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Génétique Diversité et Ecophysiologie des Céréales (GDEC), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA), SARL Milin Nevez, and European Maritime and Fisheries Fund and France Agrimer (Hypotemp project, n◦ P FEA470019FA1000016) and by Ministry of Education, Youth and Sports of the Czech Republic – ProjectCENAKVA (LM2018099).

Subjects
Heritability, Hypoxia resistance, [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, Hypoxia tolerance, GWAS, Aquatic Science
Abstract

International audience; Hypoxia is one of the major threats to the aquaculture sector resulting in substantial economic losses to the fish farmers. Thus, tolerance to hypoxia is of high economic interest to be genetically improved by breeding programs. Rainbow trout (Oncorhynchus mykiss) is one of the most cultured salmonid species worldwide, with welldeveloped breeding programs. Still, studies of genetic potential to improve hypoxia tolerance in this species are rare. In the present study, 1320 individuals of rainbow trout were used for a genome-wide association study of acute hypoxia tolerance based on imputed high-density genotypes to explore the genetic architecture and related candidate genes affecting hypoxia response. Three significant (Omy31_1, Omy31_2, Omy20) and two putative (Omy15, Omy28) quantitative trait loci (QTLs) were detected, but each of them only explained between 0.2% and 0.8% of the genetic variance of acute hypoxia tolerance. However, heritability was estimated at a moderate value of 0.24-0.28, that suggests a solid potential to improve hypoxia tolerance in the studied rainbow trout population by genetic selection. Moreover, it was shown that genomic prediction for hypoxia tolerance would lead to a relative increase of ~11% for genomic selection (GS) accuracy compared to the pedigree-based selection, considering a reference population of 1000 individuals. Finally, fifteen genes (ids, fmr1, arx, lonrf3, commd5, map4k4, smu1, b4galt1, re1, abca1, noa1, igfbp7, noxo1, bcl2a, mylk3) were proposed as potential functional candidates involved in hypoxia tolerance. Taking all proposed candidate genes (6 out of 15 genes) and high linkage disequilibrium (r 2) values within the main QTL (Omy31_1), we may hypothesize that the complex response to acute hypoxia in rainbow trout, i.e., the interplay between behavioural, morphological, and physiological responses, is primarily encoded by a supergene. However, further functional validation of their effects may help to specify the biological mechanisms triggering a response to acute hypoxia in rainbow trout.

Published
2023
Full Text
View/download PDF

25. GENETIC PARAMETERS AND GENOME-WIDE ASSOCIATION STUDY OF RESISTANCE TO ACUTE HYPERTHERMIA IN RAINBOW TROUT

Author

Lagarde, Henri, Lallias, Delphine, Patrice, Pierre, Prchal, Martin, François, Yoannah, D’ambrosio, Jonathan, Acin Perez, Ana, Cachelou, Frédéric, Haffray, Pierrick, Dupont-Nivet, Mathilde, Phocas, Florence, and LALLIAS, Delphine

Subjects
[SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics
Abstract

Selective breeding is a promising solution to reduce fish farms vulnerability to heat peaks.Objectives of this study were to give a new insight on the genetic architecture of resistance toacute hyperthermia stress in rainbow trout. At 275 days post-fertilization, 1,384 fish werephenotyped for acute hyperthermia resistance and body weight. Challenged fish weregenotyped for 57K SNP and their genotypes were imputed at high-density thanks to theirparents being genotyped on a 665K SNP array. Heritability estimate of resistance to acutehyperthermia was 0.32 ± 0.04. This trait was genetically negatively correlated with body weight(-0.58 ± 0.17). The genome-wide association study revealed that resistance to acutehyperthermia is highly polygenic as altogether the 5 detected QTLs explained less than 5% ofthe genetic variance. The main QTL region explained 3% of the genetic variance and containedtwo candidate genes previously described to be associated with temperature resistance.

Published
2022

31. Sources de variation de la méthylation de l'ADN chez la truite arc-en-ciel : effets combinés de la température et du patrimoine génétique

Author

Lallias, Delphine, Chaulot-Talmon, Aurélie, Aubert-Frambourg, Anne, Jouneau, Luc, Labbé, Laurent, Goardon, Lionel, Bideau, Marjorie, Le Calvez, Jean-Michel, Quillet, Edwige, Jammes, Hélène, Kiefer, Hélène, Dupont-Nivet, Mathilde, Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Biologie de la Reproduction, Environnement, Epigénétique & Développement (BREED), École nationale vétérinaire - Alfort (ENVA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Pisciculture Expérimentale INRAE des Monts d'Arrée (PEIMA), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), and European Project: 652831,H2020,H2020-INFRAIA-2014-2015,AQUAEXCEL2020(2015)

Subjects
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, DNA methylation, EpiRADseq, Temperature, rainbow trout, isogenic lines, dnmt3
Abstract

International audience; Phenotypic plasticity is a key component of the ability of organisms to respond to changing environmental conditions. In this study, we aimed to study the establishment of DNA methylation marks in response to an environmental stress in rainbow trout and to assess whether these marks depend on the genetic background. The environmental stress chosen here was temperature, a known induction factor of epigenetic marks in fish. To disentangle the role of epigenetic mechanisms such as DNA methylation in generating phenotypic variations, nine rainbow trout isogenic lines with no genetic variability within a line were used. For each line, half of the eggs were incubated at standard temperature (11 degrees C) and the other half at high temperature (16 degrees C), from eyed-stage to hatching. In order to gain a first insight into the establishment of DNA methylation marks in response to an early temperature regime (control 11 degrees C vs. heated 16 degrees C), we have studied the expression of 8 dnmt3 (DNA methyltransferase) genes, potentially involved in de novo methylation, and analysed global DNA methylation in the different rainbow trout isogenic lines using LUMA (LUminometric Methylation Assay). Finally, finer investigation of genome-wide methylation patterns was performed using EpiRADseq, a reduced-representation library approach based on the ddRADseq (Double Digest Restriction Associated DNA) protocol, for six rainbow trout isogenic lines. We have demonstrated that thermal history during embryonic development alters patterns of DNA methylation, but to a greater or lesser extent depending on the genetic background.Keywords

Published
2021
Full Text
View/download PDF

32. Why Do Some Rainbow Trout Genotypes Grow Better With a Complete Plant-Based Diet? Transcriptomic and Physiological Analyses on Three Isogenic Lines

Author

Callet, Thérèse, primary, Dupont-Nivet, Mathilde, additional, Danion, Morgane, additional, Burel, Christine, additional, Cluzeaud, Marianne, additional, Surget, Anne, additional, Aguirre, Pierre, additional, Kerneis, Thierry, additional, Labbé, Laurent, additional, Panserat, Stephane, additional, Quillet, Edwige, additional, Geurden, Inge, additional, Skiba-Cassy, Sandrine, additional, and Médale, Françoise, additional

Published
2021
Full Text
View/download PDF

33. Genetic parameters and genome-wide association studies of quality traits characterised using imaging technologies in Rainbow trout, Oncorhynchus mykiss

Author

blay, Carole, Haffray, Pierrick, Bugeon, Jérôme, D’Ambrosio, Jonathan, Dechamp, Nicolas, Collewet, Guylaine, Enez, Florian, Petit, Vincent, Cousin, Xavier, Corraze, Geneviève, Phocas, Florence, Dupont-Nivet, Mathilde, Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), Laboratoire de Physiologie et Génomique des Poissons (LPGP), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Optimisation des procédés en Agriculture, Agroalimentaire et Environnement (UR OPAALE), Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Sources de l'Avance, MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS), Nutrition, Métabolisme, Aquaculture (NuMéA), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), This study was supported by the European Maritime andFisheries Fund and FranceAgrimer co-funded this work(OmegaTruite project, n° P FEA 470017FA1000008), and Université Paris-Saclay-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)

Subjects
fat content, aquaculture, QTL, [SDV]Life Sciences [q-bio], food and beverages, magnetic resonance imaging, Fatmeter, flesh colour, computer vision, genetic correlations
Abstract

International audience; One of the top priorities of the aquaculture industry is the genetic improvement of economically important traits in fish, such as those related to processing and quality. However, the accuracy of genetic evaluations has been hindered by a lack of data on such traits from a sufficiently large population of animals. The objectives of this study were thus threefold: (i) to estimate genetic parameters of growth-, yield-, and quality-related traits in rainbow trout (Oncorhynchus mykiss) using three different phenotyping technologies [invasive and non-invasive: microwave-based, digital image analysis, and magnetic resonance imaging (MRI)], (ii) to detect quantitative trait loci (QTLs) associated with these traits, and (iii) to identify candidate genes present within these QTL regions. Our study collected data from 1,379 fish on growth, yield-related traits (body weight, condition coefficient, head yield, carcass yield, headless gutted carcass yield), and quality-related traits (total fat, percentage of fat in subcutaneous adipose tissue, percentage of fat in flesh, flesh colour); genotypic data were then obtained for all fish using the 57K SNP Axiom® Trout Genotyping array. Heritability estimates for most of the 14 traits examined were moderate to strong, varying from 0.12 to 0.67. Most traits were clearly polygenic, but our genome-wide association studies (GWASs) identified two genomic regions on chromosome 8 that explained up to 10% of the genetic variance (cumulative effects of two QTLs) for several traits (weight, condition coefficient, subcutaneous and total fat content, carcass and headless gutted carcass yields). For flesh colour traits, six QTLs explained 1–4% of the genetic variance. Within these regions, we identified several genes (htr1, gnpat, ephx1, bcmo1, and cyp2x) that have been implicated in adipogenesis or carotenoid metabolism, and thus represent good candidates for further functional validation. Finally, of the three techniques used for phenotyping, MRI demonstrated particular promise for measurements of fat content and distribution, while the digital image analysis-based approach was very useful in quantifying colour-related traits. This work provides new insights that may aid the development of commercial breeding programmes in rainbow trout, specifically with regard to the genetic improvement of yield and flesh-quality traits as well as the use of invasive and/or non-invasive technologies to predict such traits.

Published
2021
Full Text
View/download PDF

36. Additional file 2 of Genetic architecture and genomic selection of fatty acid composition predicted by Raman spectroscopy in rainbow trout

Author

Blay, Carole, Haffray, Pierrick, D���Ambrosio, Jonathan, Prado, Enora, Dechamp, Nicolas, Nazabal, Virginie, Bugeon, J��r��me, Enez, Florian, Causeur, David, Eklouh-Molinier, Christophe, Petit, Vincent, Phocas, Florence, Corraze, Genevi��ve, and Dupont-Nivet, Mathilde

Abstract

Additional file 2. Estimates of phenotypic correlations between proportions of fatty acids and production or quality traits.

Published
2021
Full Text
View/download PDF

37. GENOME-WIDE ASSOCIATION STUDY OF HYPOXIA STRESS TOLERANCE IN RAINBOW TROUT

Author

Prchal, Martin, Lallias, Delphine, Lagarde, Henri, D’ambrosio, Jonathan, Patrice, Pierre, François, Yoannah, Poncet, Charles, Desgranges, Alexandre, Haffray, Pierrick, Dupont-Nivet, Mathilde, Phocas, Florence, LALLIAS, Delphine, University of South Bohemia, Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Université Paris-Saclay-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), Génétique Diversité et Ecophysiologie des Céréales (GDEC), and Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Université Clermont Auvergne (UCA)

Subjects
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, [SDV.GEN.GA] Life Sciences [q-bio]/Genetics/Animal genetics
Abstract

International audience

Published
2021

38. Additional file 4 of Genetic architecture and genomic selection of fatty acid composition predicted by Raman spectroscopy in rainbow trout

Author

Blay, Carole, Haffray, Pierrick, D���Ambrosio, Jonathan, Prado, Enora, Dechamp, Nicolas, Nazabal, Virginie, Bugeon, J��r��me, Enez, Florian, Causeur, David, Eklouh-Molinier, Christophe, Petit, Vincent, Phocas, Florence, Corraze, Genevi��ve, and Dupont-Nivet, Mathilde

Abstract

Additional file 4. Summary statistics for 11 production and quality traits in rainbow trout.

Published
2021
Full Text
View/download PDF

39. Additional file 1 of Genetic architecture and genomic selection of fatty acid composition predicted by Raman spectroscopy in rainbow trout

Author

Blay, Carole, Haffray, Pierrick, D���Ambrosio, Jonathan, Prado, Enora, Dechamp, Nicolas, Nazabal, Virginie, Bugeon, J��r��me, Enez, Florian, Causeur, David, Eklouh-Molinier, Christophe, Petit, Vincent, Phocas, Florence, Corraze, Genevi��ve, and Dupont-Nivet, Mathilde

Abstract

Additional file 1. Fatty acid composition of the two final diets (% total FAs).

Published
2021
Full Text
View/download PDF

40. Réponse à 10 générations de sélection multicaractères chez la truite chez Aqualande

Author

Vandeputte, Marc, Corraze, Geneviève, Enez, Florian, Haffray, Pierrick, Doerflinger, Jérôme, Horat, Mathilde, Petit, Vincent, Terrier, Frédéric, Clota, Frédéric, Larroquet, Laurence, Espirat, Thierry, Skiba-Cassy, Sandrine, Dupont-Nivet, Mathilde, MARine Biodiversity Exploitation and Conservation (UMR MARBEC), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut de Recherche pour le Développement (IRD), Génétique Animale et Biologie Intégrative (GABI), Université Paris-Saclay-AgroParisTech-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Nutrition, Métabolisme, Aquaculture (NuMéA), Université de Pau et des Pays de l'Adour (UPPA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), Aqualande, and 3AS Station Expérimentale d'Aquaculture Ifremer, Chemin de Maguelone, 34250, Palavas-les-Flots, France

Subjects
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, [SDV.SA.SPA]Life Sciences [q-bio]/Agricultural sciences/Animal production studies, [SDV.SA.STP]Life Sciences [q-bio]/Agricultural sciences/Sciences and technics of fishery, [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2020

41. A polygenic hypothesis for sex determination in the European sea bass Dicentrarchus labrax

Author

Vandeputte, Marc, Dupont-Nivet, Mathilde, Chavanne, Herve, and Chatain, Beatrice

Subjects
European sea bass -- Genetic aspects, Sex determination, Genetic -- Evaluation, Dimorphism (Biology) -- Genetic aspects, Biological sciences
Abstract

Polygenic sex determination, although suspected in several species, is thought to be evolutionarily unstable and has been proven in very few cases. In the European sea bass, temperature is known to influence the sex ratio. We set up a factorial mating, producing 5.893 individuals from 253 full-sib families, all reared in a single batch to avoid any between-families environmental effects. The proportion of females in the offspring was 18.3%, with a large variation between families. Interpreting sex as a threshold trait, the heritability estimate was 0.62 [+ or -] 0.12. The observed distribution of family sex ratios was in accordance with a polygenic model or with a four-sex-factors system with environmental variance and could not be explained by any genetic model without environmental variance. We showed that there was a positive genetic correlation between weight and sex ([r.sub.A] = 0.50 [+ or -] 0.09), apart from the phenotypic sex dimorphism in favor of females. This supports the hypothesis that a minimum size is required for sea bass juveniles to differentiate as females. An evolution of sex ratio by frequency-dependent selection is expected during the domestication process of Dicentrarchus labrax populations, raising concern about the release of such fish in the wild.

Published
2007

42. Evidence for genetic control of adult weight plasticity in the snail Helix aspersa

Author

Ros, Mathieu, Sorensen, Daniel, Waagepetersen, Rasmus, Dupont-Nivet, Mathilde, SanCristobal, Magali, Bonnet, Jean-Claude, and Mallard, Jacques

Subjects
Phenotype -- Analysis, Snails, Edible -- Genetic aspects, Biological sciences
Abstract

Phenotypic plasticity and canalization are important topics in quantitative genetics and evolution. Both concepts are related to environmental sensitivity. The latter can be modeled using a model with genetically structured environmental variance. This work reports the results of a genetic analysis of adult weight in the snail Helix aspersa. Several models of heterogeneous variance are fitted using a Bayesian, MCMC approach. Exploratory analyses using posterior predictive model checking and model comparisons based on the deviance information criterion favor a model postulating a genetically structured heterogeneous environmental variance. Our analysis provides a strong indication of a positive genetic correlation between additive genetic values affecting the mean and those affecting environmental variation of adult body weight. The possibility of manipulating environmental variance by selection is illustrated numerically using estimates of parameters derived from the snail data set.

Published
2004

45. Sources of variation of DNA methylation in rainbow trout: combined effects of temperature and genetic background

Author

Lallias, Delphine, primary, Bernard, Maria, additional, Ciobotaru, Céline, additional, Dechamp, Nicolas, additional, Labbé, Laurent, additional, Goardon, Lionel, additional, Le Calvez, Jean-Michel, additional, Bideau, Marjorie, additional, Fricot, Alexandre, additional, Prézelin, Audrey, additional, Charles, Mathieu, additional, Moroldo, Marco, additional, Cousin, Xavier, additional, Bouchez, Olivier, additional, Roulet, Alain, additional, Quillet, Edwige, additional, and Dupont-Nivet, Mathilde, additional

Published
2020
Full Text
View/download PDF

47. Suplementing aquafeeds with new alternative ingredients: a promising solution to improve plant-based diet efficiency in rainbow trout

Author

Skiba-Cassy, Sandrine, BUREL, Christine, Kerneis, Thierry, Labbé, Laurent, Terrier, Frédéric, Corraze, Geneviève, Richard, Nadège, Marchand, Y., Dupont-Nivet, Mathilde, Nutrition, Métabolisme, Aquaculture (NuMéA), Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA), Pisciculture Expérimentale INRA des Monts d'Arrée (PEIMA), Institut National de la Recherche Agronomique (INRA), Phileo Lesaffre Animal Care, Coopérative Le Gouessant [Lamballe], Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, We thank FUI (Fonds Unique Interministériel) 2014 for financial support of the NINAqua project, European Aquaculture Society (EAS). BEL., and Le Gouessant

Subjects
oncorhynchus mykiss, alimentation végétale, alimentation animale, animal nutrition, growth, [SDV.BA]Life Sciences [q-bio]/Animal biology, animal feeding, nutrition animale, supplémentation alimentaire, rainbow trout, croissance, [SDV.AEN]Life Sciences [q-bio]/Food and Nutrition
Abstract

Session Nutrition: Additives and Ingredients; Suplementing aquafeeds with new alternative ingredients: a promising solution to improve plant-based diet efficiency in rainbow trout. Aquaculture Europe 2019

Published
2019

48. In-depth genomic characterization of a unique collection of rainbow trout isogenic lines

Author

Lallias, Delphine, Boussaha, Mekki, Bernard, Maria, Peigné, Antoine, Ciobotaru, Céline, Dechamp, Nicolas, Dupont-Nivet, Mathilde, Quillet, Edwige, Génétique Animale et Biologie Intégrative (GABI), and Institut National de la Recherche Agronomique (INRA)-AgroParisTech

Subjects
[SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics, ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2019

49. NINAQUA : nouveaux ingrédients pour de nouveaux aliments aquacoles – effets sur la qualité des truitesau stade portion

Author

Brit, Guillaume, Bugeon, Jérôme, Goardon, Lionel, Kerneis, Thierry, Caudal, Erwan, Cardinal, Mireille, Marchand, Yann, Skiba-Cassy, Sandrine, Dupont-Nivet, Mathilde, Labbé, Laurent, Lefèvre, Florence, Laboratoire de Physiologie et Génomique des Poissons (LPGP), Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique )-Institut National de la Recherche Agronomique (INRA), Pisciculture Expérimentale INRA des Monts d'Arrée (PEIMA), Institut National de la Recherche Agronomique (INRA), LEMMMB, Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER), Le Gouessant Aquaculture, Nutrition, Métabolisme, Aquaculture (NuMéA), Institut National de la Recherche Agronomique (INRA)-Université de Pau et des Pays de l'Adour (UPPA), Génétique Animale et Biologie Intégrative (GABI), AgroParisTech-Institut National de la Recherche Agronomique (INRA), FUI NINAQUA [Lesaffre / Copalis], Institut National de la Recherche Agronomique (INRA)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, and Institut Technique de l'Aviculture et des Elevages de Petits Animaux (ITAVI). FRA.

Subjects
fish, analyse sensorielle, alimentation, food intake, [SDV]Life Sciences [q-bio], fish fillets, qualité de la chair, sensory analysis, poisson, novelty foods, croissance animale, filet de poisson, chair de poisson, animal growth, aliment nouveau
Abstract

Session : Nutrition et qualité; NINAQUA : nouveaux ingrédients pour de nouveaux aliments aquacoles – effets sur la qualité des truitesau stade portion. 6. Journées de la Recherche Filière Piscicole

Published
2019

50. Estimation de la diversité génétique entre et intra lignées françaises de truite arc en ciel

Author

D'Ambrosio, Jonathan, Phocas, Florence, Haffray, Pierrick, Quillet, Edwige, Bestin, Anastasia, Fraslin, Clémence, Dechamp, Nicolas, Dupont-Nivet, Mathilde, Génétique Animale et Biologie Intégrative (GABI), Institut National de la Recherche Agronomique (INRA)-AgroParisTech, Laboratoire de Physiologie et Génomique des Poissons (LPGP), Institut National de la Recherche Agronomique (INRA)-Structure Fédérative de Recherche en Biologie et Santé de Rennes ( Biosit : Biologie - Santé - Innovation Technologique ), Syndicat des Sélectionneurs Avicoles et Aquacoles Français, France Agrimer 57KTruite, Syndicat des Sélectionneurs Avicoles et Aquacoles Français (SYSAAF), France Agrimer, and Institut Technique de l'Aviculture et des Elevages de Petits Animaux (ITAVI). FRA.

Subjects
Diversité génétique, Truite arc-en-ciel, Salmonide, Oncorhynchus mykiss, [SDV]Life Sciences [q-bio], Sélection, Lignée de poisson, Poisson
Abstract

National audience; Estimation de la diversité génétique entre et intra lignées françaises de truite arc en ciel. 6. Journées de la Recherche Filière Piscicole

Published
2019

Catalog

Books, media, physical & digital resources
See catalog results