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A molecular assay for the proactive detection of target site-based resistance to herbicides inhibiting acetolactate synthase in Alopecurus myosuroides. Inra
Délye, C.; Boucansaud, K..
Acetolactate synthase (ALS) inhibitors are the most resistance-prone herbicide group. Rapid resistance diagnosis is thus of importance for their optimal use. We formulate rules to use the derived cleaved amplified polymorphic sequence method to develop molecular tools detecting a change at a given codon, the nature of which is unknown. We applied them to Alopecurus myosuroides (black grass) to develop assays targeting ALS codons A122, P197, A205, W574 and S653 that are crucial for herbicide sensitivity. These assays detected W574L or P197T, or both substitutions, in most plants analysed from a field where ALS inhibitors failed after 3 years of use. Similar assays can easily be set up for any species. Given the rapidity of selection for resistance to ALS...
Tipo: Journal Article Palavras-chave: ACETOLACTATE SYNTHASE; ALS; AHAS; DCAPS; HERBICIDE; PCR; PROACTIVE DIAGNOSIS; MUTATION; RESISTANCE; SULFONYLUERA; GRASS WEED.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD200883179961&uri=/notices/prodinra1/2009/02/
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A naturally occurring mutation K220T in the pleiotropic activator PrfA of Listeria monocytogenes results in a loss of virulence due to decreasing DNA-binding affinity Inra
Velge, P.; Herler, M.; Johansson, J.; Roche, S.; Témoin, S.; Fedorov, A. A.; Gracieux, P.; Almo, S. C.; Goebel, W.; Cossart, P..
The sequencing of prfA, encoding the transcriptional regulator of virulence genes, in 26 low virulence field Listeria monocytogenes strains showed that eight strains exhibited the same single amino-acid substitution: PrfAK220T. These strains exhibited no expression of PrfA-regulated proteins and thus no virulence. This substitution inactivated PrfA, since expression of the PrfAK220T mutant gene in an EGDΔprfA strain did not restore the haemolytic and phosphatidylcholine phospholipase C activities, in contrast to the wild-type prfA gene. The substitution of the lysine at position 220 occurred in the helix αH. However, the data showed that the PrfAK220T protein is dimerized just as well as its wild-type counterpart, but does not bind to PrfA boxes....
Tipo: Journal Article Palavras-chave: LISTERIA MONOCYTOGENES; PROTEINE; FACTEUR DE VIRULENCE; BACTERIE PATHOGENE; ADN; SEQUENCE NUCLEOTIDIQUE; REGULATION; TRANSCRIPTION; VIRULENCE; EXPRESSION DES GENES; ACIDE AMINE; MUTATION; RT-PCR; ELECTROPHORESE; ENZYME; ARN POLYMERASE.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009c1895b3c&uri=/notices/prodinra1/2009/11/
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Analyse cladistique de mutations de l'ADN chloroplastique et phylogénie des riz (section Eu-Oryza du genre Oryza) IRD
Dally, A..
Une méthode non-aqueuse améliorée pour la préparation d'ADN chloroplastique (ADNcp) à partir de matériel foliaire séché de plantes adultes a permis une analyse des PLFR de l'ADNcp du riz à l'aide de 10 endonucléases de restriction. 320 plantes, représentant 248 variétés et 15 espèces de la Section #Eu-Oryza$ du genre #Oryza$, furent analysées. Un phylogramme hypothétique complet de 32 types de plastomes, dont 10 parmi les riz cultivés, fut déduit d'une analyse cladistique de 112 mutations décelées, calibré à l'aide de données bibliographiques sur les taux de mutation de l'ADNcp chez les Graminées, et confronté à certains repères paléo-géographiques. Les résultats apportent des informations nouvelles, en bonne partie compatibles avec les données existantes...
Tipo: Text Palavras-chave: RIZ; PLASTE; ADN; MUTATION; ANALYSE; EVOLUTION; PHYLOGENIE; METHODOLOGIE; CLADISTIQUE; HORLOGE MOLECULAIRE; EXTRACTION NON AQUEUSE; ELECTROPHORESE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:25740
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Analysis of the plant genes involved in the nitrogen fixing symbiosis : Sesbania rostrata as a model IRD
Lajudie, Philippe de.
Tipo: Text Palavras-chave: LEGUMINEUSE TROPICALE; SYMBIOSE; BACTERIE; FIXATION BIOLOGIQUE DE L'AZOTE; NODULE RACINAIRE; MODELISATION; ANALYSE GENETIQUE; MUTATION; GENE NODULIN; LEGHEMOGLOBINE.
Ano: 1988 URL: http://www.documentation.ird.fr/hor/fdi:010023973
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Bilan de six années de recherches sur l'emploi des rayonnements ionisants pour l'amélioration des plantes au Sénégal IRD
Bilquez, André-François; Magne, Clément; Martin, Jean-Pierre.
Tipo: Text Palavras-chave: AMELIORATION DES PLANTES; ARACHIDE; MIL; RIZ; GRAINE; VARIETE; RAYONNEMENT X; MUTATION; ETUDE EXPERIMENTALE; RESULTAT ANALYTIQUE; ARACHIS HYPOGAEA; ORYZA SATIVA; PENNISETUM TYPHOIDES.
Ano: 1965 URL: http://www.documentation.ird.fr/hor/fdi:10605
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Bilan de six années de recherches sur l'emploi des rayonnements ionisants pour l'amélioration des plantes au Sénégal IRD
Bilquez, André-François; Magne, Clément; Martin, Jean-Pierre.
Tipo: Text Palavras-chave: AMELIORATION DES PLANTES; ARACHIDE; MIL; RIZ; GRAINE; VARIETE; RAYONNEMENT X; MUTATION; ETUDE EXPERIMENTALE; RESULTAT ANALYTIQUE; PENNISETUM TYPHOIDES.
Ano: 1964 URL: http://www.documentation.ird.fr/hor/fdi:15065
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Capacité adaptative des populations virales aux résistances quantitatives des plantes Inra
Cartier, E..
Le contournement de résistances qualitatives est observé dans de nombreuses interactions entre les plantes et leurs agents pathogènes ce qui démontre l'importance de créer des résistances durables. L'utilisation de résistances quantitatives, gouvernées par des QTL (loci à effet quantitatif), est une possibilité suggérée par certains travaux pour augmenter la durabilité de la résistance d'une variété. A partir de deux pathosystèmes, les interactions piment-Cucumber Mosaic Vitus (CMV) et piment-Potato Virus Y (PVY), l'étude de la capacité de ces virus à contourner les résistances quantitatives des plantes a pu être réalisée. Pour le PVY, au terme de six passages successifs sur des plantes partiellement résistantes, une érosion de la...
Tipo: Thesis Palavras-chave: RESISTANCE QUANTITATIVE; CONTOURNEMENT; POTATO VIRUS Y (PVY); CUCUMBER MOSAIC VIRUS (CMV); QTL; AGRESSIVITE; FITNESS; MUTATION; VIRULENCE; AVIRULENCE;  .
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010ed6a0afb&uri=/notices/prodinra1/2011/01/
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Capacité vectorielle du type sauvage et du mutant salmon de Glossina morsitans morsitans Westwood, 1850 (Diptera : Glossinidae) dans la transmission de Trypanosoma brucei Plimmer et Bradford, 1899 IRD
Makumyaviri, A.M.; Distelmans, W.; Claes, Y.; D'Haeseleer, F.; Le Ray, D.; Gooding, R.H..
Tipo: Text Palavras-chave: ECOLOGIE; PHYSIOLOGIE; VECTEUR; TRANSMISSION; GENETIQUE; MUTATION; INFESTATION; SEXE; APPAREIL DIGESTIF; GLANDE SALIVAIRE; DETERMINISME GENETIQUE; GLOSSINA MORSITANS MORSITANS; MUTATION SALMON; TRYPANOSOMA BRUCEI BRUCEI.
Ano: 1984 URL: http://www.documentation.ird.fr/hor/fdi:28386
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Caractéristiques génétiques et physiologiques de la thermosensibilité du développement embryonnaire chez un mutant à létalité conditionnelle de Caenorhabditis elegans, lignée Bergerac IRD
Abdulkader, N.; Brun, Jean-Louis.
Tipo: Text Palavras-chave: NEMATODE; GENETIQUE; MUTATION; EMBRYOGENESE; CAENORHABDITIS ELEGANS; THERMOSENSIBILITE.
Ano: 1980 URL: http://www.documentation.ird.fr/hor/fdi:21361
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CATdb: a public access to Arabidopsis transcriptome data from the URGV-CATMA platform Inra
Gagnot, S.; Tamby, J.P.; Martin-Magniette, M.L.; Bitton, F.; Taconnat, L.; Balzergue, S.; Aubourg, S.; Renou, J.P.; Lecharny, A.; Brunaud, V..
CATdb is a free resource available at http://urgv.evry.inra.fr/CATdb that provides public access to a large collection of transcriptome data for Arabidopsis thaliana produced by a single Complete Arabidopsis Transcriptome Micro Array (CATMA) platform. CATMA probes consist of gene-specific sequence tags (GSTs) of 150500 bp. The v2 version of CATMA contains 24 576 GST probes representing most of the predicted A. thaliana genes, and 615 probes tiling the chloroplastic and mitochondrial genomes. Data in CATdb are entirely processed with the same standardized protocol, from microarray printing to data analyses. CATdb contains the results of 53 projects including 1724 hybridized samples distributed between 13 different organs, 49 different developmental...
Tipo: Journal Article Palavras-chave: CDNA MICROARRAY DATA; SEQUENCE TAGS; INFORMATION; GENOME; NORMALIZATION; BIOLOGY; GENE COMPONENTS ; ADNC; SEQUENCE NUCLEOTIDIQUE; NORMALISATION; BIOLOGIE; ARABIDOPSIS THALIANA; MUTATION; MITOCHONDRIE; CHLOROPLASTE; METHODE STATISTIQUE; EXPRESSION DES GENES.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20111a416d88&uri=/notices/prodinra1/2011/03/
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Chloroplast DNA diversity in wild and cultivated species of rice (genus Oryza, section Oryza) : cladistic-mutation and genetic-distance analysis IRD
Dally, A.M.; Second, Gérard.
Tipo: Text Palavras-chave: RIZ; PLASTE; ADN; VARIABILITE; MUTATION; CYTOTAXONOMIE; PHYLOGENIE.
Ano: 1990 URL: http://www.documentation.ird.fr/hor/fdi:31535
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Coat colour variants of village pigs in Papua New Guinea Inra
Lauvergne, J.J.; Malynicz, G.L.; Quartermain, A.R..
A preliminay description and genetic analysis of coat colour variation in Papua New Guinea village pigs is presented. Data were obtained from a series of deliberate matings and from surveys of coat coloration in two villages. A number of pigmentary variations caused by alleles at the Agouti, Extension and Brown loci were found and are described,including a possible new allele at the Brown locus (Bk) causing brown spots on the basic red background colour. The segregations observed in the deliberate matings can be interpreted in terms of two alleles at the Agouti (Aw and a) and two at the Extension loci (E + and Ep). Results from the village surveys show a high incidence of agouti phenotypes[Aw], relative to black [a], and a very low incidence of...
Tipo: Journal Article Palavras-chave: CROISEMENT; VARIATION GENETIQUE; MUTATION.
Ano: 1982 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008188091aa&uri=/notices/prodinra1/2008/03/
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Comparaison de la variabilité de populations d’abricotiers issus de graines irradiées et non irradiées de même origine Inra
Legave, J.M..
La variabilité d’abricotiers issus de graines irradiées à des doses croissantes d’un rayonnement gamma à faible débit de dose est comparée à celle d’une population témoin. Parmi les irradiés ont été observés, avec une fréquence non liée à la dose de traitement, quelques individus présentant un double phénotype et des individus plus nombreux à phénotype homogène mais « original » pour un ou plusieurs caractères par rapport à la variabilité phénotypique des témoins. Tous ces individus peuvent être considérés comme de présumés mutants. Pour une large majorité d’entre eux, la maturité des fruits est apparue relativement précoce par rapport à celle des témoins (aspect avantageux). Par contre, bien que dans une moindre mesure, beaucoup ont présenté une...
Tipo: Journal Article Palavras-chave: ARBRE FRUITIER; PHENOTYPE; EXPRESSION DES GENES; MATURITE DU FRUIT; FLORAISON; PRODUCTIVITE; GERMINATION; COMPARAISON DE LA VARIABILITE DE POPULATIONS; MUTATION; RAYON GAMMA; FAIBLE DEBIT; INTERET AGRONOMIQUE MUTATION; GAMMA RAY; SLOW DOSE RATE; APRICOT.
Ano: 1985 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009193fc8c4&uri=/notices/prodinra1/2009/02/
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Compatibilité végétative d'isolats du Fusarium oxysporum f. sp. albedinis et de Fusarium oxysporum de la rhizosphère du palmier dattier et des sols de palmeraies IRD
Tantaoui, A.; Boisson, Claude.
Tipo: Text Palavras-chave: PALMERAIE; FUSARIOSE; PARASITE; ASSIMILATION; AZOTE; IDENTIFICATION; MUTATION; RESISTANCE DE L'HOTE; MORPHOLOGIE; POUVOIR PATHOGENE; ETUDE COMPARATIVE; PALMIER DATTIER; COMPATIBILITE VEGETATIVE.
Ano: 1991 URL: http://www.documentation.ird.fr/hor/fdi:010022209
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Construction of nested genetic core collections to optimize the exploitation of natural diversity in Vitis vinifera L. subsp sativa Inra
Le Cunff, L.; Fournier-Level, A.; Laucou, V.; Vezzulli, S.; Lacombe, T.; Adam-Blondon, A.F.; Boursiquot, J.M.; This, P..
Background: The first high quality draft of the grape genome sequence has just been published. This is a critical step in accessing all the genes of this species and increases the chances of exploiting the natural genetic diversity through association genetics. However, our basic knowledge of the extent of allelic variation within the species is still not sufficient. Towards this goal, we constructed nested genetic core collections (G-cores) to capture the simple sequence repeat (SSR) diversity of the grape cultivated compartment (Vitis vinifera L. subsp. sativa) from the world's largest germplasm collection (Domaine de Vassal, INRA Herault, France), containing 2262 unique genotypes. Results: Sub-samples of 12, 24, 48 and 92 varieties of V. vinifera L....
Tipo: Journal Article Palavras-chave: RESISTANCE AUX MALADIES; VIGNE; DIVERSITE; POLYMORPHISME; SEQUENCE NUCLEOTIDIQUE; MARQUEUR GENETIQUE; EXPRESSION DES GENES; DIVERSITE GENETIQUE SINGLE NUCLEOTIDE POLYMORPHISMS; LINKAGE DISEQUILIBRIUM; CULTIVATED GRAPEVINE; MICROSATELLITE LOCI; CROHNS DISEASE; WINE GRAPES; EXPRESSION; MUTATION; GENOME; SUSCEPTIBILITY.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20117dca1051&uri=/notices/prodinra1/2011/05/
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Contexte de l'agriculture martiniquaise : atouts et contraintes pour l'agriculture biologique IRD
Saffache, P.; Blanchart, Eric; Cabidoche, J.M.; Josien, E.; Michalon, T.; Saudubray, F.; Scherer, C..
Tipo: Text Palavras-chave: AGRICULTURE; SYSTEME AGRAIRE; EXPLOITATION AGRICOLE; MUTATION; HISTOIRE; CANNE A SUCRE; CULTURE D'EXPORTATION; BANANE; CULTURE VIVRIERE; DEMOGRAPHIE; CLIMAT; ZONE CLIMATIQUE; SOL; PRATIQUE CULTURALE; EROSION; RESSOURCES EN EAU; NUTRIMENT; RESERVOIR; SALINISATION; POLLUTION CHIMIQUE; PESTICIDE; IRRIGATION; FERTILITE DU SOL; AGRICULTURE BIOLOGIQUE; ANANAS.
Ano: 2005 URL: http://www.documentation.ird.fr/hor/fdi:010035422
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Définition du programme général des recherches de l'unité de travail en zone tropicale sèche dépendant de la section de biologie et d'amélioration des plantes utiles de l'ORSTOM IRD
Bilquez, André-François.
Tipo: Text Palavras-chave: AMELIORATION DES PLANTES; PLANTE UTILE; PROGRAMME DE RECHERCHE; MIL; ARACHIDE; PLANTE CULTIVEE; PLANTE SAUVAGE; HYBRIDATION; MUTATION.
Ano: 1965 URL: http://www.documentation.ird.fr/hor/fdi:28095
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Diversité génétique des lentivirus humains et simiens au Cameroun : implications pour la santé publique IRD
Aghokeng Fobang, Avelin.
Tipo: Text Palavras-chave: SIDA; VIRUS; PRIMATE; VARIABILITE GENETIQUE; DIAGNOSTIC; SEROLOGIE; SENSIBILITE RESISTANCE; MUTATION; POLYMORPHISME GENETIQUE; INFECTION; PREVALENCE; EVALUATION; PREVENTION SANITAIRE; TRAITEMENT MEDICAL; VACCINATION; DIVERSITE GENETIQUE; ALGORITHME D'INTERPRETATION; ZOONOSE.
Ano: 2006 URL: http://www.documentation.ird.fr/hor/fdi:010036874
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Effects of two-locus combinations, using the « roux », « lavender » and « beige » mutations, on plumage color of Japanese quail Inra
Minvielle, F.; Gourichon, D.; Monvoisin, J.L..
The interactions between the effects of three plumage color mutations taken two-by-two (sex-linked recessive roux,autosomal recessive lavender, and autosomal dominant beige) were studied in Japanese quail by producing a total of 121 F1and 1118 F2 quail from the three pure stocks. Three new plumage colors were obtained in F2 quail: roux-diluted beige,cream, and lavender-diluted beige. Two of them, roux-diluted beige (from the roux and beige mutations) and cream (fromthe roux and lavender mutations) corresponded to double homozygotes or hemizygous birds, and could therefore be usedto tag a quail line. On the other hand, an F3 from F2 birds with lavender-diluted beige plumage was necessary to show thatquail with this plumage color were homozygous for the...
Tipo: Journal Article Palavras-chave: CAILLE JAPONAISE; COULEUR DU PLUMAGE; MUTATION; EPISTASIE.
Ano: 2003 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008263add3&uri=/notices/prodinra1/2008/08/
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Etude génétique d'un mutant méiotique dominant chez Caenorhabditis elegans, souche Bergerac IRD
Beguet, Bernard.
Tipo: Text Palavras-chave: GENETIQUE; MUTATION; MEIOSE; NEMATODE; HERMAPHRODITE; PRODUCTION DE MALE; CAENORHABDITIS.
Ano: 1978 URL: http://www.documentation.ird.fr/hor/fdi:21306
Registros recuperados: 57
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