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Registros recuperados: 9
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Comparison between classical and Bayesian methods to investigate the history of olive cultivars using SSR-polymorphisms Inra
Breton, C.; Pinatel, C.; Médail, F.; Bonhomme, C.; Berville, A..
Olive cultivar origins are unknown. We attempted to use multivariate analyses and based Bayesian methods to look for sites of olive cultivar geographic origins. In this study, to establish the method, forty cultivars were chosen with different chlorotypes that represent the olive RAPD-based diversity in the Mediterranean basin. We constructed a dendrogram, as reference, using molecular SSR data. Cultivar origins in the oleaster were examined by using Bayesian clustering methods. It was calculated whether some cultivars may be grouped by admixture analysis to these GRPs and how much olive cultivars admixed to the previously defined oleaster GRPs: two in the east and four in the west of the Mediterranean basin. The comparison between dendrogram and Bayesian...
Tipo: Journal Article Palavras-chave: ASSIGNATION (BAYESIAN) METHOD DOMESTICATION; GENETIC RELATIONSHIPS; OLIVE CULTIVARS; MICROSATELLITES.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200952d38b74&uri=/notices/prodinra1/2009/03/
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De l’olivier à l’oléastre : origine et domestication de l’Olea europaea L. dans le Bassin méditerranéen Inra
Breton, C.; Médail, F.; Pinatel, C.; Berville, A..
De l’olivier à l’oléastre : origine et domestication de l’Olea europaea L. dans le Bassin méditerranéen Keywords : VEGETAL PRODUCTIONS, NATURAL RESOURCES AND ENVIRONMENTRésumé : L’olivier occupe la 24 e place des 35 espèces les plus cultivées dans le monde. La diversité phénologique des cultivars est remarquable et l’intérêt économique de l’espèce est majeur. Pourtant peu d’études ont porté sur la domestication de l’olivier et sur les relations entre l’olivier et sa forme sauvage, l’oléastre. Les marqueurs moléculaires rendent possible l’étude de la structure génétique des cultivars, des flux géniques et des relations entre la forme cultivée et sauvage. L’analyse de la diversité actuelle de la sous-espèce europaea d’Olea europea permet de remonter le temps...
Tipo: Journal Article Palavras-chave: DOMESTICATION; FLUX DE GENES; EVOLUTION.
Ano: 2006 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008418dacc0&uri=/notices/prodinra1/2011/03/
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Differences between native and introduced olive cultivars as revealed by morphology of drupes, oil composition and SSR polymorphisms: a case study in Tunisia Inra
Hannachi, H.; Breton, C.; Msallem, M.; Ben El Hadj, S.; El Gazzah, M.; Berville, A..
Olive cultivars are diversified but nothing is known on their origins and if they are local or introduced in any regions. The study aims to determine which traits may help to identify native from introduced cultivars and oleaster trees. We compared cultivars and oleasters from North Tunisia to determine their relationships based on morphological traits, oil composition and SSR genotyping at seven loci. We used those parameters to examine 32 cultivar trees from 17 denominations and 70 oleaster trees sampled. We used multivariate analysis, enabling to retain the best variables, to establish relationships among trees based on morphological and pomological parameters. Gas chromatography was used to determine fatty acid composition of 30 cultivar trees and 13...
Tipo: Journal Article Palavras-chave: OLEASTER DOMESTICATION; CULTIVAR ORIGINS; DRUPE MORPHOLOGY; OIL COMPOSITION; OIL CONTENT; SSR.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009d15c7f29&uri=/notices/prodinra1/2009/03/
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Molecular modelling and site directed mutagenesis of plant chloroplast monogalactosyldiacylglycerol synthase reveal critical residues for activity Inra
Botté, C.; Jeanneau, C.; Snajdrova, L.; Bastien, O.; Imberty, A.; Breton, C.; Maréchal, É..
Monogalactosyldiacylglycerol (MGDG), the major lipid of plant and algal plastids, is synthesized by MGD (or MGDG synthase), a dimeric and membrane-bound glycosyltransferase of the plastid envelope that catalyzes the transfer of a galactosyl group from a UDP-galactose donor onto a diacylglycerol acceptor. Although this enzyme is essential for biogenesis, and therefore an interesting target for herbicide design, no structural information is available. MGD monomers share sequence similarity with MURG, a bacterial glycosyltransferase catalyzing the transfer of N-acetyl-glucosamine on Lipid 1. Using the x-ray structure of Escherichia coli MURG as a template, we computed a model for the fold of Spinacia oleracea MGD. This structural prediction was supported by...
Tipo: Journal Article Palavras-chave: ENVELOPPE CHLOROPLASTIQUE; MGDG SYNTHASE; STRUCTURE; MODELISATION MOLECULAIRE; MUTAGENESE DIRIGEE; CHLOROPLASTE; GLYCOLIPIDE.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PUB0500032105110133&uri=/notices/prodinra1/2010/11/
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Reply to comment on Breton et al.: “Taming the wild and 'wilding' the tame: tree breeding and dispersal in Australia and the Mediterranean" Inra
Breton, C.; Guerin, J.; Ducatillion, C.; Médail, F.; Kull, C.A.; Berville, A..
Tipo: Journal Article Palavras-chave: POTENTIEL INVASIF; DISSEMINATION DISPERSAL; INVASIVENESS.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20097a813257&uri=/notices/prodinra1/2009/03/
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Sex- and Diet-Specific Changes of Imprinted Gene Expression and DNA Methylation in Mouse Placenta under a High-Fat Diet Inra
Gallou-Kabani, C.; GABORY, A.; Tost, J.; Karimi, M.; Mayeur, S.; Lesage, J.; Boudadi, E.; Gross, M-S; Taurelle, J.; Vigé, A.; Breton, C.; Reusens, B.; Remacle, C.; Vieau, D.; Ekström, T. J.; Jais, J-P; Junien, C..
Changes in imprinted gene dosage in the placenta may compromise the prenatal control of nutritional resources. Indeed monoallelic behaviour and sensitivity to changes in regional epigenetic state render imprinted genes both vulnerable and adaptable. We investigated whether a high-fat diet (HFD) during pregnancy modified the expression of imprinted genes and local and global DNA methylation patterns in the placenta. Pregnant mice were fed a HFD or a control diet (CD) during the first 15 days of gestation. We compared gene expression patterns in total placenta homogenates, for male and female offspring, by the RT-qPCR analysis of 20 imprinted genes. Sexual dimorphism and sensitivity to diet were observed for nine genes from four clusters on chromosomes 6,...
Tipo: Journal Article Palavras-chave: EPIGENETIQUE; EMPREINTE PARENTALE;  PROGRAMMATION FOETALE; SYNDROME METABOLIQUE; NUTRITION; OBESITE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201171147857&uri=/notices/prodinra1/2011/06/
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Somatic embryogenesis, micropropagation and plant regeneration of "Early Mature" walnut trees (Juglans regia) that flower in vitro Inra
Breton, C.; Cornu, D.; Chriqui, D.; Sauvanet, A.; Capelli, P.; Germain, E.; Jay-Allemand, C..
Some walnut trees (Juglans regia L.) originating from central Asia display an early flowering phenotype. These “Early Mature” (EM) trees may produce flowers within months of germination. Secondary flowering waves are also observed within a growing season. Inflorescences may carry male, female and hermaphrodite flowers. Progeny obtained from selected EM trees were cultured in vitro to initiate clonal propagation of these genotypes. Embryogenic lines were established through the culture of immature zygotic embryos. Microshoot lines were obtained from germinated somatic or zygotic embryos. Plants showing EM phenotypes were recovered through direct conversion of somatic embryos or adventitious rooting of microcuttings. During the in vitro propagation phase,...
Tipo: Journal Article Palavras-chave: PRECOCITE DE FLORAISON; FLORAISON PRECOCE; JUVENILE; EMBRYOGENESE SOMATIQUE; MICROPROPAGATION; REGENERATION; GENE HOMEOTIQUE; EXPRESSION DES GENES FLOWERING; GENE EXPRESSION; HOMEOTIC; JUVENILITY; PERSIAN WALNUT.
Ano: 2004 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007efba0dec&uri=/notices/prodinra1/2008/11/
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Taming the wild and 'wilding' the tame: tree breeding and dispersal in Australia and the Mediterranean Inra
Breton, C.; Guerin, J.; Ducatillion, C.; Médail, F.; Kull, C.A.; Berville, A..
The olive (Olea europaea) and the wattles (mimosas or Acacia spp.) are typical tree species of the Mediterranean and Australia, respectively. Both trees have been subject to trans-oceanic movements, including the introduction of Mediterranean olives to Australia, and the introduction of Australian wattles to the Mediterranean. In each case, the trees have naturalised and become problematic invasives. Based on case studies of such movements, we compare and contrast the processes of transfer, dispersal, and genetic changes of these trees, with particular attention to crop-feral-wild complexes in both their home ranges and in introduced areas. Contrasting ecological, social, and economic landscapes shape the possibilities for crop-feral-wild interactions and...
Tipo: Journal Article Palavras-chave: POTENTIEL INVASIF; DISSEMINATION DISPERSAL; INVASIVENESS.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200962869d4a&uri=/notices/prodinra1/2009/03/
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Wood formation in Angiosperms Inra
Dejardin, A.; Laurans, F.; Arnaud, D.; Breton, C.; Pilate, G.; Leplé, J.C..
La formation du bois est un processus de développement complexe, impliquant cinqétapes majeures : (1) la division des cellules à partir d’un méristème secondaire, appelé le cambium; (2) l’élongation des cellules ; (3) le dépôt d’une paroi secondaire épaisse ; (4) la mort programmée des cellules ; et (5) leur imprégnation par des composés phénoliques conduisant à la formation du bois de coeur. Grâce au développement des techniques de génomique et aux travaux menés sur la caractérisation d’arbres transgéniques, certains mécanismes moléculaires impliqués dans la formation du bois commencent à être mieux connus. Dans cette revue, deux aspects importants pour la qualité du bois seront approfondis : la lignification et le contrôle de l’angle des microfibrilles...
Tipo: Journal Article Palavras-chave: FORMATION DU BOIS; BOIS DE TENSION; PAROI SECONDAIRE; ANGLE DES MICROFIBRILLES WOOD FORMATION; TENSION WOOD; SECONDARY CELL WALL; MICROFIBRIL ANGLE; LIGNIN; POPLAR; GENOMICS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20104db4dabe&uri=/notices/prodinra1/2010/05/
Registros recuperados: 9
Primeira ... 1 ... Última
 

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