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A combined microsatellite multiplexing and boiling DNA extraction method for high-throughput parentage analyses in the Pacific oyster (Crassostrea gigas) ArchiMer
Taris, Nicolas; Baron, S; Sharbel, Tim; Sauvage, Christopher; Boudry, Pierre.
The analysis of parentage using microsatellite markers is of increasing importance, notably in aquaculture genetic research where communal rearing of mixed families can be used to reduce unwanted environmental variance. We present here an optimization of parental genotype assessment for larvae or adults of the Pacific oyster, Crassostrea gigas, using a multiplex system of three microsatellite loci. In conjunction with a simple DNA extraction protocol, this method enables high throughput analyses of parentage in C. gigas. Using this method, we successfully determined the parentage of 93% (1224 out of 1318) of the progeny in a factorial cross between 3 females and 10 males. The inability to genotype the remaining 7% was due to DNA degradation of larvae...
Tipo: Text Palavras-chave: Oysters; Aquaculture; Parental assignment; High throughput; Larval DNA extraction; Multiplex.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-1814.pdf
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A comparative field study of growth, survival and reproduction of Crassostrea gigas, C-angulata and their hybrids ArchiMer
Soletchnik, Patrick; Huvet, Arnaud; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe; Boudry, Pierre.
This paper reports a comparative study of two cupped oysters, Crassostrea gigas and C angulata, and their hybrids reared in the Marennes-Oleron Sound (France) under usual farming conditions. The relative proficiency of these species was characterized in terms of growth, survival and reproduction, three major concerns for oyster farming. Four populations of each taxon were sampled (C gigas: Japan and France; C angulata: Taiwan and Spain) and used as progenitors to produce six different progenies under common hatchery and nursery conditions (transfer of 5 to 6 g of seed oysters at sea and rearing in bags for 2 years). Mortality profiles differed greatly among the progenies. The C angulata progeny of Taiwanese origin gave the poorest results, with 100%...
Tipo: Text Palavras-chave: Atlantic coast; Crassostrea gigas; Phenotypes; Hybrids; Oyster fanning.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/publication-560.pdf
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A complementary method for production of tetraploid Crassostrea gigas using crosses between diploids and tetraploids with cytochalasin B treatments ArchiMer
Mccombie, Helen; Ledu, Christophe; Phelipot, Pascal; Lapegue, Sylvie; Boudry, Pierre; Gerard, Andre.
We present a new method to produce tetraploid Crassostrea gigas by cytochalasin B inhibition of polar body 2 expulsion in diploid females crossed with tetraploid males. This offers a means of direct introgression of genetic characters from selected diploid to tetraploid lines, avoiding a triploid step. Offspring larval ploidy shifted over time and depended on size, with tetraploids more frequent among the smaller larvae and triploids among the large. Viable tetraploids were found at 4 and 6 months, indicating the technique was successful. The possibility that gynogenesis occurred was tested by microsatellite analysis to confirm the presence of paternally inherited alleles. These were present in all animals of the 2n x 4n + CB (female first) cross. However,...
Tipo: Text Palavras-chave: Oyster breeding; Gynogenesis; Polar body; Cytochalasin B; Polyploidy; Crassostrea gigas.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-632.pdf
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A first generation genetic linkage map of the European flat oyster Ostrea edulis (L.) based on AFLP and microsatellite markers ArchiMer
Lallias, Delphine; Beaumont, A.r.; Haley, C.s.; Boudry, Pierre; Heurtebise, Serge; Lapegue, Sylvie.
This study presents the first genetic linkage map for the European flat oyster Ostrea edulis. AFLP and 20 microsatellite markers were genotyped in a three-generation pedigree comprised of 2 grand-parents, 2 parents and 92 progeny. Chi-square goodness of fit tests revealed high segregation distortion, which was significant for 32.8% of markers. Sixteen microsatellites and 235 AFLPs (170 AFLPs type 1:1 and 65 AFLPs type 3:1) were used to build sex-specific linkage maps using CriMap software. The first parental map (P1) consisted of 104 markers grouped in nine linkage groups, spanning 471.2 cM with an average spacing of 4.86 cM. The second parental map (P2) consisted of 117 markers grouped in ten linkage groups (which equals the haploid chromosome number),...
Tipo: Text Palavras-chave: Microsatellite; AFLP; Ostrea edulis; Flat oyster; Genetic linkage map.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2642.pdf
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A first genetic linkage map of the blue mussel Mytilus edulis ArchiMer
Lallias, Delphine; Hecquet, Céline; Boudry, Pierre; Lapegue, Sylvie; Beaumont, Andy.
The blue mussel, Mytilus edulis, is widely distributed in the northern hemisphere, from the White Sea to the Atlantic coast of southern France, and is an economically important species (1 million tons per year, FAO, 2002). At present however, little domestication has been achieved with bivalves, in contrast to agricultural crops, livestock and horticultural species like tomatoes, where selection and production is entirely controlled by man. For bivalves, despite their economic importance, no lines with selected characteristics have been taken to the production scale. There is therefore a need to make up for lost time. Our interest in genetic mapping sprang from some results showing a genetic component to some economically important traits like growth and...
Tipo: Text Palavras-chave: QTLs; AFLP; Genetic; Mussel; Mytilus edulis; Genetic linkage map.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3465.pdf
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A first genetic linkage map of the European flat oyster, Ostrea edulis : towards the identification of Bonamia resistance QTLs ArchiMer
Lallias, Delphine; Lapegue, Sylvie; Haley, Chris; Heurtebise, Serge; Boudry, Pierre; Beaumont, Andy.
The flat oyster Ostrea edulis is an endemic European oyster species, found on both Atlantic and Mediterranean coasts. Its aquacultural production has dramatically decreased due to two successive diseases caused by the intracellular parasites Marteilia refringens and Bonamia ostreae. Since 1985, Ifremer has undertaken a breeding program to produce oyster families which are tolerant to Bonamia. In this context, the next step is to identify QTLs for resistance to this parasite. A genetic map is therefore being established as a basis for QTL work. The reference family is an F2 family produced by single pair mating of two oysters from the same F1 family. The F1 family was itself produced from a bi-parental cross between a wild oyster and an individual from the...
Tipo: Text Palavras-chave: Genetic linkage map; Parasite; Genetic; QTLs; Resistance; Bonamia ostreae; Ostrea edulis; Flat oyster.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3464.pdf
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A first linkage map for the European flat oyster, Ostrea edulis towards the identification of Bonamia resistance QTLs ArchiMer
Lallias, Delphine; Beaumont, Andy; Haley, Chris; Heurtebise, Serge; Boudry, Pierre; Lapegue, Sylvie.
The flat oyster Ostrea edulis is an endemic European oyster species, found on both Atlantic and Mediterranean coasts. Its aquacultural production has dramatically decreased due to two successive diseases caused by the intracellular parasites Marteilia refringens and Bonamia ostreae. Since 1985, Ifremer has undertaken a breeding program to produce oyster families which are tolerant to Bonamia. In this context, a genetic map was therefore established as a basis for Quantitative Trait Loci (QTLs) analysis. The reference family was an F2 family coming from a first bi-parental cross between a wild oyster and an individual from the fifth generation inbred line of the Bonamia tolerance selection program. This inbred line had shown no mortality when reared in...
Tipo: Text Palavras-chave: Parasite; Bonamia ostreae; Bonamiosis; QTL; Genetic; Ostrea edulis; Flat oyster.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3459.pdf
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A "G" chromosome banding study of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica (Mollusca : Bivalvia) ArchiMer
Leitao, Alexandra; Thiriot-quievreux, Catherine; Malheiro, Isabel; Boudry, Pierre.
The G-banding technique was performed on chromosomes from gill tissue of three cupped oyster species : Crassostrea gigas, Crassostrea angulata and Crassostrea virginica. Identification of the ten individual chromosome pairs was obtained. Comparative analysis of G-banded karyotypes of the three species showed that their banding patterns generally resembled each other, with chromosome pair 3 being similar in all three species. However, differences from one species to another were also observed. The G-banding pattern highlighted greater similarities between C. gigas and C. angulata than between these two species and C. virginica, thus providing an additional argument for genetic divergence between, these two evolutionary lineages. C. gigas and C. angulata...
Tipo: Text Palavras-chave: Crassostrea virginica; Crassostrea angulata; Crassostrea gigas; G banding; Chromosome.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/publication-2736.pdf
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A preliminary genetic linkage map for the European flat oyster Ostrea eduli ArchiMer
Lallias, Delphine; Lapegue, Sylvie; Halley, Chris; Boudry, Pierre; Beaumont, Andy.
The European flat oyster, Ostrea edulis, occurs naturally from Norway to Morocco in the North-Eastern Atlantic and throughout the Mediterranean. The oyster has been a harvested species for at least 6000 years. However, it successively suffered from over harvesting and then from two protozoan diseases during the 1960s and its production has drastically decreased in Europe from that time. Following two generations of selection for tolerance to one of these diseases (bonamiosis), our aim is to optimize this selection with the assistance of molecular markers, that is to say to implement marker-assisted selection. This will enhance the efficiency of selection by reducing the generation time, as the selection on sites cannot be made before the oysters are...
Tipo: Text Palavras-chave: QTLs; Ostrea edulis; Genetic linkage map; Genetic; European flat oyster.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-3473.pdf
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A preliminary genetic linkage map for the European flat oyster Ostrea edulis L. ArchiMer
Lallias, Delphine; Lapegue, Sylvie; Harley, Crhis; Boudry, Pierre; Heurtebise, Serge; Beaumont, Andy.
The flat oyster Ostrea edulis is the species endemic to European coasts, both Atlantic and Mediterranean. It has been exploited since Roman times, but its aquaculture production decreased from around 20000 tons in the 1950's to 1500 tons today because of two successive diseases due to the intracellular parasites Marteilia refringens and Bonamia ostreae. Since 1985, Ifremer has been undertaking a breeding program to produce families of oysters tolerant to Bonamia. In this context, a further step would be to identify QTLs for resistance to this parasite. Therefore, as a first step a genetic map is now being built. The establishment of a genetic linkage map will provide a foundation for the mapping of QTLs, with the ultimate objective to implement...
Tipo: Text Palavras-chave: QTLs; Ostrea edulis; Flat oyster; Genetic linkage map; Genetic.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-3466.pdf
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Acclimatation de nouvelles espèces d'huîtres creuse du genre Crassostrea: hybridation et conservatoire de souches - Contrat de Plan Etat Région Poitou-Charentes 1994-1998 - Synthèse finale ArchiMer
Boudry, Pierre; Heurtebise, Serge; Huvet, Arnaud; Chollet, Bruno; Ledu, Christophe; Phelipot, Pascal; Gerard, Andre.
Actions menées de 1994 à 1998 au sein du conservatoire de souches : 1. Résultats des importations, acclimatation et hybridation. a) Rappel des conditions d'introduction de nouvelles souches. L'importation de toute espèce est conditionnée par les résultats d'une enquête préliminaire dont l'objet est de rechercher les exigences écologiques de l'espèce et la situation épidémiologique dans son milieu d'origine. Le travail du LGP et de ses partenaires a été partagé en différentes actions: 1. Recherche de contacts dans divers pays étrangers, en vue de l'importation d'huîtres présentant des caractéristiques intéressantes. 2. Importation : L'importation se fait selon les normes du CIEM (Conseil International pour l'Exploration de la Mer) : contrôles pathologiques...
Tipo: Text Palavras-chave: Génétique; Acclimatation; Hybridation; Marqueurs moléculaire; Marqueurs populations; Crassostrea.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00044/15520/12907.pdf
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Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea: hybridation et conservatoire de souches. Amélioration de la qualité chez l'huître creuse Crassostrea gigas par sélection de souches performantes - Rapport année 1996 ArchiMer
Boudry, Pierre; Naciri, Yamama; Collet, Bertrand; Cornette, Florence; Heurtebise, Serge; Ledu, Christophe; Chollet, Bruno; Phelipot, Pascal; Gerard, Andre.
Les objectifs pour l'année 1996 étaient les suivants: Poursuivre les premières reproductions des espèces pour lesquelles nous disposons de géniteurs GO. L'objectif est toujours de limiter le stockage d'animaux importés en produisant une descendance simultanément à des témoins C. gigas qui serviront de comparaison. Tenter des hybridations inter-spécifiques des différents taxons présents au sein du conservatoire en fonction des connaissances disponibles dans la littérature sur ce sujet (voir pour revue Gaffney et Allen, 1993). • Importer de nouvelles souches ou espèces. Élargir la gamme des espèces présentes au sein du conservatoire de souches (les capacités d'accueil de la salle de quarantaine étant Limitée).
Tipo: Text Palavras-chave: Génétique; Acclimatation; Hybridation; Crassostrea; Sélection génétique; Saccostrea commercialis.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00044/15516/12903.pdf
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Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea: hybridation et conservatoire de souches. Amélioration de la qualité chez l'huîtres creuses Crassostrea gigas par sélection de souches performantes - Contrat de Plan Etat Région Poitou-Charentes 1994-1998 - Convention 97 RPC-R-54 "Génétique" - Rapport année 1997 ArchiMer
Boudry, Pierre; Lapegue, Sylvie; Goyard, Emmanuel; Heurtebise, Serge; Ledu, Christophe; Phelipot, Pascal; Gerard, Andre.
Les objectifs pour l'année 1997 étaient les suivants : • Poursuivre les premières reproductions des espèces pour lesquelles nous disposons de géniteurs GO. L'objectif est toujours de limiter le stockage d'animaux importés en produisant une descendance simultanément à des témoins C. gigas qui serviront de comparaison. • Tenter des hybridations inter-spécifiques des différents taxons présents au sein du conservatoire en fonction des connaissances disponibles dans la littérature sur ce sujet (voir pour revue Gaffney et Allen, 1993). • Importer de nouvelles souches ou espèces. Élargir la gamme des espèces présentes au sein du conservatoire de souches (les capacités d'accueil de la salle de quarantaine étant limitée).
Tipo: Text Palavras-chave: Génétique; Génétique des Populations; Acclimatation; Hybridation; Marqueurs génétiques; Sélection génétique; Crassostrea gigas.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00044/15519/12906.pdf
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Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea: hybridation et conservatoire de souches. Contrat Région Poitou-Charentes 1994-1998 - 1ère partie : rapport année 1994 ArchiMer
Boudry, Pierre; Naciri, Yamama; Launey, Sophie; Ledu, Christophe; Phelipot, Pascal; Heurtebise, Serge; Gerard, Andre.
Le laboratoire IFREMER "Génétique Aquaculture et Pathologie" (GAP) (La Tremblade et Bouin) a entrepris des actions de recherche sur ces différents points. L'Unité de Recherche en Génétique, en collaboration avec tous Ies membres du Réseau Génétique Mollusques (REGEMO) a axé une partie de ses travaux sur l'acclimatation et l'hybridation de différentes espèces du genre Crassostrea. Ces recherches ont débuté avec le soutien du Conseil Général de Charente-Maritime depuis 1992 sur des essais d'acclimatation de C. virginica, l'huître creuse américaine. En prolongement de cette étude, l'URGE a proposé à la région Poitou Charentes un programme de recherche plus vaste sur l'ensemble des espèces d'huîtres creuses. Le contrat de plan Etat-Région a été signé en...
Tipo: Text Palavras-chave: Génétique; Acclimatation; Hybridation; Crassostrea; Saccostrea; Génétique population.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/00044/15517/12904.pdf
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Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea : hybridation et conservatoire de souches. Contrat Région Poitou-Charentes 1999 - Convention 99 RPC-A-203 "Génétique" ArchiMer
Boudry, Pierre; Heurtebise, Serge; Lapegue, Sylvie; Ledu, Christophe; Phelipot, Pascal; Gerard, Andre.
Dans le cadre du plan Etat-Région 1994-1998, un programme de conservatoire de souches a été initié au Laboratoire IFREMER de La Tremblade. Ce conservatoire a pour objectif d'acclimater différentes espèces ou souches d'huîtres creuses (genres Crassostrea et Saccostrea) afin d'acquérir des connaissances sur ces espèces et d'évaluer l'intérêt qu'elles pourraient présenter pour l'ostréiculture locale. L'importation d'espèces étrangères sur les côtes françaises est désormais strictement réglementée: la dissémination d'une nouvelle espèce peut se révéler néfaste d'un point de vue écologique et nuire aux productions existantes. De plus, ces huîtres peuvent être porteuses de pathogènes qui, s'il venaient à se répandre dans le milieu, pourraient toucher les stocks...
Tipo: Text Palavras-chave: Génétique; Acclimatation; Croisement; Crassostrea gigas; Crassostrea ariakensis; Crassostrea sikamea; Hybridation.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00044/15514/12901.pdf
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Acclimatation de nouvelles espèces d'huîtres creuses du genre Crassostrea: hybridations et conservatoire de souches. Contrat de Plan Etat Région Poitou- Charentes 1994-1998 - Convention 95/RPC-R-57 "Génétique" - Rapport année 1995 ArchiMer
Boudry, Pierre; Naciri, Yamama; Heurtebise, Serge; Delsert, Claude; Ledu, Christophe; Phelipot, Pascal; Chollet, Bruno; Cochennec, Nathalie; Gerard, Andre.
Le laboratoire IFREMER "Génétique Aquaculture et Pathologie" (GAP) (La Tremblade et Bouin) a entrepris des actions de recherche sur ces différents points. L'Unité de Recherche en Génétique, en collaboration avec tous les membres du Réseau Génétique Mollusques (REGEMO), a axé une partie de ses travaux sur l'acclimatation et l'hybridation de différentes espèces du genre Crassostrea. Ces recherches ont débuté avec le soutien du Conseil Général de Charente-Maritime depuis 1992 sur des essais d'acclimatation de C. virginica, l'huître creuse américaine. En prolongement de cette étude, l'URGE a proposé à la région Poitou-Charentes un programme de recherche plus vaste sur l'ensemble des espèces d'huîtres creuses.
Tipo: Text Palavras-chave: Génétique; Acclimatation; Hybridation; Crassostrea virgnica.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00044/15515/12902.pdf
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Additive transcriptomic variation associated with reproductive traits suggest local adaptation in a recently settled population of the Pacific oyster, Crassostrea gigas ArchiMer
Sussarellu, Rossana; Huvet, Arnaud; Lapegue, Sylvie; Quillen, Virgile; Lelong, Christophe; Cornette, Florence; Jensen, Lasse Fast; Bierne, Nicolas; Boudry, Pierre.
Background Originating from Northeast Asia, the Pacific oyster Crassostrea gigas has been introduced into a large number of countries for aquaculture purpose. Following introduction, the Pacific oyster has turned into an invasive species in an increasing number of coastal areas, notably recently in Northern Europe. Methods To explore potential adaptation of reproductive traits in populations with different histories, we set up a common garden experiment based on the comparison of progenies from two populations of Pacific oyster sampled in France and Denmark and their hybrids. Sex ratio, condition index and microarray gene expression in gonads, were analyzed in each progeny (n = 60). Results A female-biased sex-ratio and a higher condition index were...
Tipo: Text Palavras-chave: Crassostrea gigas; Adaptation; Invasiveness; Fertility; Sex-ratio; Transcriptome; Microarray.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00287/39829/38343.pdf
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AFLP-based genetic linkage maps of the blue mussel (Mytilus edulis) ArchiMer
Lallias, Delphine; Lapegue, Sylvie; Hecquet, Celine; Boudry, Pierre; Beaumont, A.
We report the construction of the first genetic linkage map in the blue mussel, Mytilus edulis. AFLP markers were used in 86 full-sib progeny from a controlled pair mating, applying a double pseudo-test cross strategy. Thirty-six primer pairs generated 2354 peaks, of which 791 (33.6%) were polymorphic in the mapping family. Among those, 341 segregated through the female parent, 296 through the male parent (type 1:1) and 154 through both parents (type 3:1). Chi-square goodness-of-fit tests revealed that 71% and 73% of type 1:1 and 3:1 markers respectively segregated according to Mendelian inheritance. Sex-specific linkage maps were built with mapmaker 3.0 software. The female framework map consisted of 121 markers ordered into 14 linkage groups, spanning...
Tipo: Text Palavras-chave: Mytilus edulis; Genetic linkage map; Blue mussel; AFLP.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2830.pdf
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Amélioration de la qualité chez l'huître creuse Crassostrea gigas par sélection de souches performantes - Contrat de Plan Etat Région Poitou-Charentes 1994-1998 - Rapport année 1995 ArchiMer
Boudry, Pierre; Naciri, Yamama; Heral, Maurice; Collet, Bertrand; Bougrier, Serge; Geffard, Olivier; Ledu, Christophe; Phelipot, Pascal; Heurtebise, Serge; Gerard, Andre.
Le programme de recherche présenté ci-dessous est le fruit d'une réflexion conjointe entre généticiens et physiologistes afin de mettre sur pied un ensemble d'expériences permettant d'étudier les bases génétiques de la variabilité des caractères impliqués dans la croissance chez l'huître creuse, Crassostrea gigas.
Tipo: Text Palavras-chave: Génétique; Sélection génétique; Génétique des populations; Croissance; Crassostrea gigas.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00044/15518/12905.pdf
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Amylase polymorphism affects growth in the cupped oyster Crassostrea gigas ArchiMer
Huvet, Arnaud; Samain, Jean-francois; Boudry, Pierre; Bedier, Edouard; Ropert, Michel; Van Wormhoudt, A..
The better understanding of physiological and environmental factors that determine optimal food conversion efficiencies is of major interest for the cupped oyster Crassostrea gigas for which the strong increase of aquaculture has been correlated in France with a decrease in productivity due to competition between aquatic species for limited food supplies at grow-out sites. To investigate the non-neutrality of the polymorphism of amylase, a key enzyme for carbohydrate assimilation, in oyster physiology, we report in the present paper the growth and survival measurement of amylase genotypes within five bi-parental C. gigas families, bred to be polymorph at the two PCR-RFLP amylase markers, and reared over one year under standard culture conditions in two...
Tipo: Text Palavras-chave: Amylase markers; Growth; Amylase Polymorphism; Genetic; Oysters; Crassostrea gigas.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/acte-3311.pdf
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