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Registros recuperados: 7
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CAPRETAR : Etude comparative des caractéristiques cytogénétiques et des performances de survie de naissains sauvages issus du CAPtage PREcoce ou TARdif ArchiMer
Benabdelmouna, Abdellah; Hemissi, Issam; Bodin, Stephane; Robert, Stephane; Ledu, Christophe; Laporte, Philippe.
L'action de recherche CAPRETAR (CAptage PREcoce ou TARdif: 2009-2010) a été réalisée dans le cadre du Contrat de Plan Etat Région - Poitou Charentes (CPER-PC 2007- 2013) développement durable des Pertuis Charentais. Cette action, s 'inscrit dans le cadre d 'un lien direct qui existerait entre la nature précoce/tardive d 'un captage naturel et la qualité des naissains de l'huître creuse C. gigas qui en sont issus (qualité génétique : « R » résistante ou « S » sensible et qualité génomique : taux des aneuploïdies et des dommages à l'ADN). L'objectif de cette action vise à estimer durant l 'année (2010) les performances relatives de survie de naissains issus d 'un captage précoce ou tardif réalisé l'année précédente (2009). Les résultats escomptés visent à...
Tipo: Text Palavras-chave: Génétique; Cytogénétique; Captage; Reproduction; Huîtres creuses; Crassostrea gigas.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00062/17283/14794.pdf
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Étude chez l'huître creuse, Crassostrea gigas, des anomalies génomiques provoquées par l'exposition à des concentrations environnementales de diuron : caractérisation des atteintes, étude de leur héritabilité et conséquences pour la survie et la croissance des naissains ArchiMer
Barranger, Audrey.
The aims of this PhD were to determine (1) the effects of the herbicide diuron on the genome of the oyster, Crassostrea gigas, (2) the possible transmission to the offspring of damaged DNA and (3) its consequences on oyster physiology. The genotoxicity of diuron and the vertical transmission of DNA damage were highlighted after parental exposure to environmental concentrations of diuron during the gametogenesis. Primary DNA lesions were detected in both somatic cells and germ cells of exposed genitors. Detection of the oxidized base 8-oxodGuo in gonads shows that exposure to diuron led to an oxidative stress which likely explains the observed DNA strand breaks in spermatozoa. The transmission of these DNA damage was confirmed by fluorescent in situ...
Tipo: Text Palavras-chave: Crassostrea gigas; Herbicide; Diuron; Génotoxicité; Effets trans-générationnels; Cytogénétique; Test des comètes; Cytométrie en flux; Crassostrea gigas; Herbicide; Diuron; Genotoxicity; Trans-generational effects; Cytogenetic; Comet assay; Flow cytometry.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00271/38237/36419.pdf
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Le phénomène de l'anauploïdie et sa relation avec la croissance chez l'huître creuse Crassostrea gigas ArchiMer
Leitao, Alexandra; Boudry, Pierre; Mccombie, Helen; Lapegue, Sylvie; Gerard, Andre; Thiriot-quievreux, Catherine.
Cytogenetic abnormalities have often been observed on bivalves on meiosis or mitosis. This is a review of various observations of somatic aneuploidy conducted on different populations of Crassastrea gigas.
Tipo: Text Palavras-chave: Croissance; Aneuploïdie; Huîtres; Génétique; Crassostrea gigas; Cytogénétique.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/acte-3280.pdf
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Obtention de souches conchylicoles performantes par polyploïdisation (2ème partie) ArchiMer
Gerard, Andre.
Following a phase of experimental system development, acquisition and improvement of triploidisation techniques carried out in 1989, the 1990 program divides into four main actions:1) significant production of diploid and triploid populations of cupped oysters and Pacific clams in order to compare their performances in French coastal waters2) first trials of triploidy induction in European clam3) development of a ploidy control technique at any stage of the animal life, through digital imaging4) summary of the first trials of tetraploidy induction in C. gigas and R. philippinarum
Tipo: Text Palavras-chave: Imagerie numérique; Ruditapes decussatus; Ruditapes philippinarum; Crassostrea gigas; Cytogénétique; Tétraploïdie; Triploïdie; Polyploïdie.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/1991/rapport-3855.PDF
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Obtention de souches conchylicoles performantes par polyploïdisation (3ème partie) ArchiMer
Gerard, Andre; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Noiret, Christophe; Bodoy, Alain; Heurtebise, Serge; Garnier, Jacqueline.
The third part of the polyploidisation program of the main French species of commercial interest, this report presents the actions and results for the year 1991 which was devoted to:- continuation of the development trials of the triploidy induction technique in Ruditapes decussates (i.e. indigenous clam)- production of diploid and triploid populations of Ostrea edulis (i.e. flat oyster)- control of diploid and triploid population performances in cupped oyster and Pacific clam in their natural habitat- continuation of the development of a ploidy control technique through image analysis- beginning of the development of a new polyploidy induction technique in bivalve molluscs
Tipo: Text Palavras-chave: Ruditapes decussatus; Ostrea edulis; Ruditapes philippinarum; Crassostrea gigas; Imagerie numérique; Cytogénétique; Polyploïdie.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/rapport-3857.PDF
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Obtention de souches conchylicoles performantes par polyploïdisation (4ème partie) ArchiMer
Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Bodoy, Alain; Heurtebise, Serge; Garnier, Jacqueline; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Martin, Anne-genevieve; Claude, Serge; Barret, Jean; Devauchelle, Nicole; Joly, Jean-pierre; Goulletquer, Philippe; Coatanea, Denis; Oheix, Jocelyne; Zanette, Yvan; Blachier, Philippe.
This fourth part of the polyploidisation program reports the experiments that were conducted in 1992 and that were devoted to : - the acquiring of a new method using an epifluroescent microscope - the development o a new technique for inducing polyploidy - the triploidy induction for the Europena clam Ruditapes decussatus - the settlement of performance controls conducted on diploid and triploid populations of Ostrea edulis - results of performance controls conducted on diploid and triploid populations of Crassostrea gigas and Ruditapes philippinarum
Tipo: Text Palavras-chave: Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostra gigas; Cytongenetics; Polyploidy; Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostrea gigas; Cytogénétique; Polyploïdie.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/rapport-3859.PDF
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Obtention de souches conchylicoles performantes par polyploïdisation (5ème partie) ArchiMer
Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Claude, Serge; Langlade, Aime; Joly, Jean-pierre; Goulletquer, Philippe; Ruelle, Francois; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Maurer, Daniele; Borel, Michel; Cardinal, Mireille; Cornet, Josiane; Le Pennec, Marcel; Le Mercier, A..
This fifth part of the polyploidisation program reports the experiments that were conducted in 1993 and that were devoted to : - monitoring growth performance of Ostrea edulis diploids and triploids in La Trinité sur Mer and Palavas - monitoring growth performance of Crassostrea gigas diploids and triploids in Port en Bessin, Marennes Oleron (2 locations), Arcachon and Palavas - comparative study of gametogenesis for C. gigas diploids and triploids - comparative study of C. gigas diploids and triploids using sensorial analysis At the end of fifth year, it was clear that triploids are advantageous although such a statement must be moderated according to locations. The gametogenesis stydy showed that triploidy is associated with partial to complete...
Tipo: Text Palavras-chave: Crassostrea gigas; Ostrea edulis; Cytogenetics; Polyploidy; Crassostra gigas; Ostrea edulis; Cytogénétique; Polyploïdie.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/rapport-3860.PDF
Registros recuperados: 7
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