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Registros recuperados: 5
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Contrasted microcolinearity and gene evolution within a homoeologous region of wheat and barley species Inra
Chantret, N.; Salse, J.; Sabot, F.; Bellec, A.; Laubin, B.; Dubois, I.; Dossat, C.; Sourdille, P.; Joudrier, P.; Gautier, M.F.; Cattolico, L.; Beckert, M.; Aubourg, S.; Weissenbach, J.; Caboche, M.; Leroy, P.; Bernard, M.; Chalhoub, B..
We study here the evolution of genes located in the same physical locus using the recently sequenced Ha locus in seven wheat genomes in diploid, tetraploid, and hexaploid species and compared them with barley and rice orthologous regions. We investigated both the conservation of microcolinearity and the molecular evolution of genes, including coding and noncoding sequences. Microcolinearity is restricted to two groups of genes (Unknown gene-2, VAMP, BGGP, Gsp-1, and Unknown gene-8 surrounded by several copies of ATPase), almost conserved in rice and barley, but in a different relative position. Highly conserved genes between wheat and rice run along with genes harboring different copy numbers and highly variable sequences between close wheat genomes. The...
Tipo: Journal Article Palavras-chave:  .
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2009d515ea76&uri=/notices/prodinra1/2009/03/
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Detection and discrimination of cereal and leguminous species in chestnut flour by duplex PCR Inra
Alary, R.; Buissonade, C.; Joudrier, P.; Gautier, M.F..
Chestnut and chestnut-derived products are quite expensive and thus a possible target for fraudulent labeling. To obtain a French Label of Origin, chestnut producers need to certify the purity of their products. Chestnut-derived products are consumed by people who may suffer from celiac disease or are allergic to cereals. For these reasons, we developed a qualitative PCR-based method to detect cereal and leguminous species in chestnut flour. The presence of common wheat and barley was determined by amplifying part of the puroindoline-a gene, the presence of rye by amplifying part of the secaloindoline-a gene, the presence of durum wheat, rice, maize and chickpea by amplifying part of lipid transfer protein genes, the presence of oat by amplifying part of a...
Tipo: Journal Article Palavras-chave: CHESTNUT; CEREALS; PCR; DNA; FOOD LABELING; LEGUMES.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20081cbdceff&uri=/notices/prodinra1/2008/09/
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Les lignées d’addition blé-Aegilops ventricosa. V. - Caractérisation des lignées et de leurs progéniteurs au moyen des électrophorégrammes des β amylases et des peroxydases Inra
Dosba, F.; Joudrier, P.; Kobrehel, K..
Afin de caractériser les chromosomes du génome Mv d’Aegilops ventricosa, des marqueurs biochimiques enzymatiques (β amylases et peroxydases) ont été étudiés chez différentes espèces d’Aegilops (fig. 3) et chez des lignées d’addition blé - Aegilops ventricosa. En ce qui concerne les β amylases, la plupart des lignées d’addition analysées possèdent un zymogramme correspondant à celui du blé tendre utilisé. Cependant des types de zymogramme particuliers (types VIII à X) sont observés chez quelques lignées (tabl. 1 et 2, fig. 1). Dans le cas des peroxydases, la majorité des lignées d’addition ont également le zymogramme caractéristique du blé tendre utilisé. Par ailleurs, les lignées ayant plutôt un diagramme typique d’Aegilops ventricosa ou de...
Tipo: Journal Article Palavras-chave: AEGILOPS; HYBRIDATION INTERSPECIFIQUE; MARQUAGE CHROMOSOMIQUE; ELECTROPHOREGRAMME; BETA AMYLASE; PEROXYDASE; ACTIVITE ENZYMATIQUE.
Ano: 1983 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20081b742e52&uri=/notices/prodinra1/2008/09/
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Molecular basis of evolutionary events that shaped the Hardness (Ha) locus in diploid and polyploid wheat species (Triticum and Aegilops) Inra
Chantret, N.; Salse, J.; Sabot, F.; Rahman, S.; Bellec, A.; Laubin, B.; Dubois, I.; Dossat, C.; Sourdille, P.; Joudrier, P.; Gautier, M.F.; Cattolico, L.; Beckert, M.; Aubourg, S.; Wessenbach, J.; Caboche, M.; Bernard, M.; Leroy, P.; Chalhoub, B..
The Hardness (Ha) locus controls grain hardness in hexaploid wheat (Triticum aestivum) and its relatives (Triticum and Aegilops species) and represents a classical example of a trait whose variation arose from gene loss after polyploidization. In this study, we investigated the molecular basis of the evolutionary events observed at this locus by comparing corresponding sequences of diploid, tertraploid, and hexaploid wheat species (Triticum and Aegilops). Genomic rearrangements, such as transposable element insertions, genomic deletions, duplications, and inversions, were shown to constitute the major differences when the same genomes (i.e., the A, B, or D genomes) were compared between species of different ploidy levels. The comparative analysis allowed...
Tipo: Journal Article Palavras-chave: GRAIN HARDNESS; GENOME EVOLUTION; DNA RECOMBINATION; WHEAT SPECIES.
Ano: 2005 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20088be18103&uri=/notices/prodinra1/2009/03/
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Puroindoline-a and puroindoline-b interact with the Saccharomyces cerevisiae plasma membrane through different amino acids present in their tryptophan-rich domain Inra
Evrard, A.; Lagarde, V.; Joudrier, P.; Gautier, M.F..
Puroindolines are two small, basic cysteine-rich proteins isolated from Triticum aestivum seeds and characterized by a tryptophan-rich domain. They form the molecular basis of wheat grain hardness and display antimicrobial activity that may contribute to plant defence. Their antimicrobial activity is presumed to be due to their hydrophobic tryptophan-rich domain. However, little is known about their mode of action and there is no in vivo evidence that the binding of puroindolines to membranes is mediated by their tryptophan-rich domain. In this study, using a yeast complementation assay, we showed that puroindolines interact with the Saccharomyces cerevisiae plasma membrane. By site-directed mutagenesis of their tryptophan-rich domain, we determined that...
Tipo: Journal Article Palavras-chave: SACCHAROMYCES CEREVISIAE.
Ano: 2008 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20093e8d01c9&uri=/notices/prodinra1/2009/03/
Registros recuperados: 5
Primeira ... 1 ... Última
 

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