Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection
International audience Ostreid herpesvirus 1 (OsHV-1) and Vibrio aestuarianus are the two main pathogens affecting the production of French oyster (Crassostrea gigas). The absence of genetic correlation between the two diseases is promising for the development of stocks with dual resistance. Using u...
Published in: | Aquaculture |
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Format: | Article in Journal/Newspaper |
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Online Access: | https://hal.science/hal-02875156 https://hal.science/hal-02875156/document https://hal.science/hal-02875156/file/Degremont-2020-Aquaculture-Enhancing-MANUSCRIT.pdf https://doi.org/10.1016/j.aquaculture.2020.735429 |
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ftunimontpellier:oai:HAL:hal-02875156v1 2024-05-12T08:02:41+00:00 Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection Degremont, Lionel Azéma, Patrick Maurouard, Elise Travers, Marie-Agnès Unité Santé, Génétique et Microbiologie des Mollusques (SGMM) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Direction Générale du Trésor Interactions Hôtes-Pathogènes-Environnements (IHPE) Université de Perpignan Via Domitia (UPVD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) 2020 https://hal.science/hal-02875156 https://hal.science/hal-02875156/document https://hal.science/hal-02875156/file/Degremont-2020-Aquaculture-Enhancing-MANUSCRIT.pdf https://doi.org/10.1016/j.aquaculture.2020.735429 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2020.735429 hal-02875156 https://hal.science/hal-02875156 https://hal.science/hal-02875156/document https://hal.science/hal-02875156/file/Degremont-2020-Aquaculture-Enhancing-MANUSCRIT.pdf doi:10.1016/j.aquaculture.2020.735429 info:eu-repo/semantics/OpenAccess ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.science/hal-02875156 Aquaculture, 2020, 526, pp.735429. ⟨10.1016/j.aquaculture.2020.735429⟩ Crassostrea gigas Realized heritability Vibrio aestuarianus OsHV-1 Disease resistance [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny info:eu-repo/semantics/article Journal articles 2020 ftunimontpellier https://doi.org/10.1016/j.aquaculture.2020.735429 2024-04-17T15:39:52Z International audience Ostreid herpesvirus 1 (OsHV-1) and Vibrio aestuarianus are the two main pathogens affecting the production of French oyster (Crassostrea gigas). The absence of genetic correlation between the two diseases is promising for the development of stocks with dual resistance. Using unselected and selected oysters concerning enhanced resistance to OsHV-1 infection, we investigated the first generation of mass selection and the response to selection to increase the resistance to V. aestuarianus for two stocks. For each stock, four groups were produced in June 2013 using either parents unchallenged with the bacteria or counterparts that survived experimental infections by the bacteria. Thus, groups were unselected oysters for both pathogens, selected for either the virus or the bacteria, and dually selected for both pathogens. All groups of each stock were evaluated at the spat and juvenile sizes following experimental infection by V. aestuarianus in May 2014. Regardless of their level of selection for OsHV-1, oysters produced from parents that survived V. aestuarianus showed similar mortalities (47% and 53% for stocks A and B, respectively) during the bacterial challenge than those produced from unchallenged parents (43% and 56%, respectively). Thus, no positive response to selection at the first generation to increase the bacterial resistance was found at the spat and juvenile sizes. At the adult stage and with experimental infection with V. aestuarianus, only stock B showed a positive response to selection for increasing the bacterial resistance with a decrease in mortality of 14% in comparison with unselected oysters. Similar results were observed when oysters were tested for 27 months in the field with the absence of response to selection for stock A, while a 13% decrease in mortality was observed for stock B. For stock B, mortality at endpoint after 27 months in the field reached 89% for the control not selected at all, decreased to 84% for oysters selected for their resistance to the ... Article in Journal/Newspaper Crassostrea gigas Université de Montpellier: HAL Aquaculture 526 735429 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
Crassostrea gigas Realized heritability Vibrio aestuarianus OsHV-1 Disease resistance [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny |
spellingShingle |
Crassostrea gigas Realized heritability Vibrio aestuarianus OsHV-1 Disease resistance [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny Degremont, Lionel Azéma, Patrick Maurouard, Elise Travers, Marie-Agnès Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
topic_facet |
Crassostrea gigas Realized heritability Vibrio aestuarianus OsHV-1 Disease resistance [SDV.BA.MVSA]Life Sciences [q-bio]/Animal biology/Veterinary medicine and animal Health [SDV.SA.ZOO]Life Sciences [q-bio]/Agricultural sciences/Zootechny |
description |
International audience Ostreid herpesvirus 1 (OsHV-1) and Vibrio aestuarianus are the two main pathogens affecting the production of French oyster (Crassostrea gigas). The absence of genetic correlation between the two diseases is promising for the development of stocks with dual resistance. Using unselected and selected oysters concerning enhanced resistance to OsHV-1 infection, we investigated the first generation of mass selection and the response to selection to increase the resistance to V. aestuarianus for two stocks. For each stock, four groups were produced in June 2013 using either parents unchallenged with the bacteria or counterparts that survived experimental infections by the bacteria. Thus, groups were unselected oysters for both pathogens, selected for either the virus or the bacteria, and dually selected for both pathogens. All groups of each stock were evaluated at the spat and juvenile sizes following experimental infection by V. aestuarianus in May 2014. Regardless of their level of selection for OsHV-1, oysters produced from parents that survived V. aestuarianus showed similar mortalities (47% and 53% for stocks A and B, respectively) during the bacterial challenge than those produced from unchallenged parents (43% and 56%, respectively). Thus, no positive response to selection at the first generation to increase the bacterial resistance was found at the spat and juvenile sizes. At the adult stage and with experimental infection with V. aestuarianus, only stock B showed a positive response to selection for increasing the bacterial resistance with a decrease in mortality of 14% in comparison with unselected oysters. Similar results were observed when oysters were tested for 27 months in the field with the absence of response to selection for stock A, while a 13% decrease in mortality was observed for stock B. For stock B, mortality at endpoint after 27 months in the field reached 89% for the control not selected at all, decreased to 84% for oysters selected for their resistance to the ... |
author2 |
Unité Santé, Génétique et Microbiologie des Mollusques (SGMM) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Direction Générale du Trésor Interactions Hôtes-Pathogènes-Environnements (IHPE) Université de Perpignan Via Domitia (UPVD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) |
format |
Article in Journal/Newspaper |
author |
Degremont, Lionel Azéma, Patrick Maurouard, Elise Travers, Marie-Agnès |
author_facet |
Degremont, Lionel Azéma, Patrick Maurouard, Elise Travers, Marie-Agnès |
author_sort |
Degremont, Lionel |
title |
Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
title_short |
Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
title_full |
Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
title_fullStr |
Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
title_full_unstemmed |
Enhancing resistance to Vibrio aestuarianus in Crassostrea gigas by selection |
title_sort |
enhancing resistance to vibrio aestuarianus in crassostrea gigas by selection |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://hal.science/hal-02875156 https://hal.science/hal-02875156/document https://hal.science/hal-02875156/file/Degremont-2020-Aquaculture-Enhancing-MANUSCRIT.pdf https://doi.org/10.1016/j.aquaculture.2020.735429 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ISSN: 0044-8486 EISSN: 1873-5622 Aquaculture https://hal.science/hal-02875156 Aquaculture, 2020, 526, pp.735429. ⟨10.1016/j.aquaculture.2020.735429⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquaculture.2020.735429 hal-02875156 https://hal.science/hal-02875156 https://hal.science/hal-02875156/document https://hal.science/hal-02875156/file/Degremont-2020-Aquaculture-Enhancing-MANUSCRIT.pdf doi:10.1016/j.aquaculture.2020.735429 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.aquaculture.2020.735429 |
container_title |
Aquaculture |
container_volume |
526 |
container_start_page |
735429 |
_version_ |
1798844826059276288 |