Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas
Introduction : Growth and survival are the life-history traits of the most interest for oyster production since they determine biomass output (growth x survival). This study aimed to investigate whether there is genetic basis for growth, survival and their plasticity to know if a selection program i...
Main Authors: | , , , , |
---|---|
Format: | Conference Object |
Language: | English |
Published: |
World Aquaculture Society
2000
|
Subjects: | |
Online Access: | https://archimer.ifremer.fr/doc/2000/acte-3498.pdf https://archimer.ifremer.fr/doc/00000/3498/ |
id |
ftarchimer:oai:archimer.ifremer.fr:3498 |
---|---|
record_format |
openpolar |
spelling |
ftarchimer:oai:archimer.ifremer.fr:3498 2023-05-15T15:58:17+02:00 Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas Ernande, Bruno Boudry, Pierre Heurtebise, Serge Haure, Joel Martin, Jean-louis 2000-05-02 application/pdf https://archimer.ifremer.fr/doc/2000/acte-3498.pdf https://archimer.ifremer.fr/doc/00000/3498/ eng eng World Aquaculture Society https://archimer.ifremer.fr/doc/2000/acte-3498.pdf https://archimer.ifremer.fr/doc/00000/3498/ info:eu-repo/semantics/openAccess restricted use Genotyic Plasticity Survival Growth Genetic Crassostrea gigas Pacific oyster text Slideshow info:eu-repo/semantics/conferenceObject 2000 ftarchimer 2021-09-23T20:15:24Z Introduction : Growth and survival are the life-history traits of the most interest for oyster production since they determine biomass output (growth x survival). This study aimed to investigate whether there is genetic basis for growth, survival and their plasticity to know if a selection program is conceivable for these traits. Material and Methods : Nested half-sibs mating design was used to produce families of oysters: 5 males were each mated to three females producing 5 half-sibs families, each containing 3 full-sib families. At 15 months of age (May 1999), each full-sibs family was randomly split into five groups which were given different treatments. Two groups were placed in a constant environment: one with low food resources and another with high food resources. The three other groups were regularly transferred from the first environment to the second one according to different periods: a group was transferred every 15 days, another every month and the third every 2 months. Oysters were individually monitored for growth and survival every 15 days over 6 months (from May to October 1999). Both crossed and nested analyses of variance enabled us to determine genotypic and environmental effects on growth and survival. Results : The analysis of variance revealed significant genotypic and environmental effects (p<0.0001) but also significant genotype x environment interaction (p<0.0001) for growth. Analysis on survival will also be presented. These results represent a first step toward a possible selection program for the studied traits. Conference Object Crassostrea gigas Pacific oyster Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Pacific |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Genotyic Plasticity Survival Growth Genetic Crassostrea gigas Pacific oyster |
spellingShingle |
Genotyic Plasticity Survival Growth Genetic Crassostrea gigas Pacific oyster Ernande, Bruno Boudry, Pierre Heurtebise, Serge Haure, Joel Martin, Jean-louis Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
topic_facet |
Genotyic Plasticity Survival Growth Genetic Crassostrea gigas Pacific oyster |
description |
Introduction : Growth and survival are the life-history traits of the most interest for oyster production since they determine biomass output (growth x survival). This study aimed to investigate whether there is genetic basis for growth, survival and their plasticity to know if a selection program is conceivable for these traits. Material and Methods : Nested half-sibs mating design was used to produce families of oysters: 5 males were each mated to three females producing 5 half-sibs families, each containing 3 full-sib families. At 15 months of age (May 1999), each full-sibs family was randomly split into five groups which were given different treatments. Two groups were placed in a constant environment: one with low food resources and another with high food resources. The three other groups were regularly transferred from the first environment to the second one according to different periods: a group was transferred every 15 days, another every month and the third every 2 months. Oysters were individually monitored for growth and survival every 15 days over 6 months (from May to October 1999). Both crossed and nested analyses of variance enabled us to determine genotypic and environmental effects on growth and survival. Results : The analysis of variance revealed significant genotypic and environmental effects (p<0.0001) but also significant genotype x environment interaction (p<0.0001) for growth. Analysis on survival will also be presented. These results represent a first step toward a possible selection program for the studied traits. |
format |
Conference Object |
author |
Ernande, Bruno Boudry, Pierre Heurtebise, Serge Haure, Joel Martin, Jean-louis |
author_facet |
Ernande, Bruno Boudry, Pierre Heurtebise, Serge Haure, Joel Martin, Jean-louis |
author_sort |
Ernande, Bruno |
title |
Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
title_short |
Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
title_full |
Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
title_fullStr |
Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
title_full_unstemmed |
Genetic basis of growth, survival and their plasticity in the Pacific oyster Crassostrea gigas |
title_sort |
genetic basis of growth, survival and their plasticity in the pacific oyster crassostrea gigas |
publisher |
World Aquaculture Society |
publishDate |
2000 |
url |
https://archimer.ifremer.fr/doc/2000/acte-3498.pdf https://archimer.ifremer.fr/doc/00000/3498/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Crassostrea gigas Pacific oyster |
genre_facet |
Crassostrea gigas Pacific oyster |
op_relation |
https://archimer.ifremer.fr/doc/2000/acte-3498.pdf https://archimer.ifremer.fr/doc/00000/3498/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
_version_ |
1766394012452782080 |