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Registros recuperados: 6
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Barcoding the base of Lepidoptera: exploring global diversity and evolution of the Micropterigidae Inra
Lees, D.C.; Rougerie, R.; Zeller-Lukashort, C.; Gibbs, G.W..
Interim results are presented summarizing the global DNA barcoding campaign recently initiated for the Micropterigidae. This family is thought to be the sister group to all other extant Lepidoptera (Kristensen et al., 2007). Despite its potential significance for un derstanding the diversity and early evolution of the Lepidoptera, to date there is no COI data for this family available on Genbank. Preliminary phylogenetic analysis based on COI barcodes reveals the surprising potential informativeness of this marker for inferring deep relationships within the family. For example, it supports a sister relationship of the Eurasian and primarily W. Palaearctic genus Micropterix with other northern hemisphere micropterigids. As expected, DNA barcodes are also...
Tipo: Conference Paper Palavras-chave: LEPIDOPTERA; MICROPTERIGIDAE; INVENTAIRE; ANALYSE PHYLOGENETIQUE DNA; INVENTORY; GENETIC CHARACTER; MOLECULAR MARKER; PHYLOGENETIC ANALYSIS.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20108090f73&uri=/notices/prodinra1/2011/01/
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In vitro expression, kinetic, pharmacologic, molecular, and evolutionary analyses, and molecular modeling of a recombinant acetylcholinesterase from the invertebrate urochordate ciona intestinalis: assembly of asymetric forms with colq Inra
Frederick, A.; Tsigelny, I.; Cohenour, F.; Spiker, C.; Krejci, E.; Chatonnet, A.; Bourgoin, S.; Richards, R.; Allen, T.; Whitlock, M.H.; Pezzementi, L..
To learn more about the evolution of the cholinesterases, acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE) in the vertebrates, we investigated the AChE activity of a deuterostome invertebrate, the urochordate Ciona intestinalis, by expressing in vitro a synthetic recombinant cDNA for the enzyme in COS-7 cells. On the basis of evidence from kinetics, pharmacology, molecular biology and molecular modeling, we confirm that the enzyme is AChE. Sequence analysis also suggests that the cDNA is AChET and should be able to code for all three globular forms of AChE: monomers (G1), dimers (G2), and tetramers (G4); and, assemble into asymmetric forms in association with the collagenic subunit colQ. Using velocity sedimentation on sucrose gradients, we...
Tipo: Meeting Paper Palavras-chave: CHOLINESTERASE; PHYLOGENETIC ANALYSIS; EVOLUTION; COLLAGEN-LIKE TAIL SUBUNIT; COLQ.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2007f343ea16&uri=/notices/prodinra1/2007/12/
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Molecular evolution of the crustacean hyperglycemic hormone family in ecdysozoans Inra
Montagné, N.; Desdevises, Y.; Soyez, D.; Toullec, J.-Y..
Background: Crustacean Hyperglycemic Hormone (CHH) family peptides are neurohormones known to regulate several important functions in decapod crustaceans such as ionic and energetic metabolism, molting and reproduction. The structural conservation of these peptides, together with the variety of functions they display, led us to investigate their evolutionary history. CHH family peptides exist in insects (Ion Transport Peptides) and may be present in all ecdysozoans as well. In order to extend the evolutionary study to the entire family, CHH family peptides were thus searched in taxa outside decapods, where they have been, to date, poorly investigated. Results: CHH family peptides were characterized by molecular cloning in a branchiopod crustacean, Daphnia...
Tipo: Journal Article Palavras-chave: HORMONE; GLYCEMIE; TENEUR EN SUCRE; HYPERGLYCEMIE; PROTEINE; ANALYSE PHYLOGENETIQUE; VITELLOGENESE; NEURONE; PEPTIDE; TENEUR EN PROTEINE; CLONAGE MOLECULAIRE; SEQUENCE NUCLEOTIDIQUE; PHYLOGENIE; PCR; ACIDE AMINE; BRACHIOPODA; COLLEMBOLA; EUCARYOTE; DAPHNIA MAGNA; FOLSOMIA CANDIDA; ECDYSOZOA VITELLOGENESIS-INHIBITING ACTIVITY; ARMADILLIDIUM-VULGARE CRUSTACEA; SHRIMP LITOPENAEUS-VANNAMEI; TRANSPORT PEPTIDE ITP; MAXIMUM-LIKELIHOOD; NUCLEOTIDE SUBSTITUTION; PHYLOGENETIC ANALYSIS; PERIPHERAL NEURONS; PROTEIN EVOLUTION; EYESTALK REMOVAL.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20107696ebf9&uri=/notices/prodinra1/2010/10/
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Morphological and molecular analyses in Scleroderma species associated with some Caesalpinioid legumes, Dipterocarpaceae and Phyllanthaceae trees in southern Burkina Faso Inra
Sanon, K.B.; Bâ, A.M.; Delaruelle, C.; Duponnois, R.; Martin, F..
A combination of morphotypes, polymerasechain reaction/restriction fragment length polymorphism (PCR/RFLP) analyses and internal transcribed spacer (ITS) sequencing was used to investigate Scleroderma species that were collected from woodlands in Burkina Faso. We harvested 52 specimens from 20 sites during rainy seasons between 1997 and 2000. According to their morphological features, these specimens were initially characterised, and we then identified six species of Scleroderma. Two of the species were clearly determined as Scleroderma dictyosporum Pat. and S. verrucosum Pers. The four remaining species were characteristically described as (1) displaying big spores with spines up to 2 μm (Scleroderma sp1), (2) producing spores without ornamentation...
Tipo: Journal Article Palavras-chave: NUTRIENT-DEFICIENT SOIL; RIBOSOMAL DNA; ECTOMYCORRHIZAL FUNGI; PHYLOGENETIC ANALYSIS; SEQUENCE ALIGNMENT; GENETIC DIVERSITY; SEEDLINGS; AFZELIA; IDENTIFICATION; PISOLITHUS; SCLERODERMA; MORPHOLOGY; IDENTIFICATION; PCR/RFLP; ITS SEQUENCING; BURKINA FASO.
Ano: 2009 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD20109dd18120&uri=/notices/prodinra1/2010/10/
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Puumala and Tula hantaviruses in France Inra
Plyusnina, A.; Deter, J.; Charbonnel, N.; Cosson, J.F.; Plyusnin, A..
The first genome sequences of Tula (TULV) and Puumala (PUUV) hantaviruses undoubtedly originated from France were recovered from tissue samples of European common voles and bank voles captured in Jura region. Genetic analysis of S and M segments of French PUUV strain revealed its highest similarity to strains from neighboring Belgium and Germany and also from Slovakia. On phylogenetic trees, French PUUV strain was placed within the central European lineage formed by strains from these three countries. Both of our French TULV strains clustered together and formed a distinct, well-supported genetic lineage.
Tipo: Journal Article Palavras-chave:  RNA VIRUSES; HANTAVIRUSES; PUUMALA VIRUS; TULA VIRUS; PHYLOGENETIC ANALYSIS.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2010da822da1&uri=/notices/prodinra1/2011/06/
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The FeFe hydrogenase of Nyctotherus ovalis has a chimeric origin Inra
Boxma, B.; Ricard, G.; van Hoek, A. H.; Severing, E.; Moon-van der Staay, S.Y.; van der Staay, G.W.M.; van Alen, T.A.; de Graaf, R.M.; Cremers, G.; Kwantes, M.; McEwan, N.R.; Newbold, C.J.; Jouany, J.P.; Michalowski, T.; Pristas, P.; Huynen, M.A.; Hackstein, J.H.P..
Background: The hydrogenosomes of the anaerobic ciliate Nyctotherus ovalis show how mitochondria can evolve into hydrogenosomes because they possess a mitochondrial genome and parts of an electron-transport chain on the one hand, and a hydrogenase on the other hand. The hydrogenase permits direct reoxidation of NADH because it consists of a [ FeFe] hydrogenase module that is fused to two modules, which are homologous to the 24 kDa and the 51 kDa subunits of a mitochondrial complex I.Results: The [ FeFe] hydrogenase belongs to a clade of hydrogenases that are different from well-known eukaryotic hydrogenases. The 24 kDa and the 51 kDa modules are most closely related to homologous modules that function in bacterial [ NiFe] hydrogenases. Paralogous,...
Tipo: Journal Article Palavras-chave: MITOCHONDRIE; CILIE; HYDROGENASE MULTIPLE SEQUENCE ALIGNMENT; COMPLEX-I; PHYLOGENETIC ANALYSIS; EUKARYOTIC EVOLUTION; IRON HYDROGENASES; LIFE-STYLE; HYDROGENOSOMES; MITOCHONDRIA; PROTEIN; MODELS.
Ano: 2007 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD2008786cfe28&uri=/notices/prodinra1/2009/10/
Registros recuperados: 6
Primeira ... 1 ... Última
 

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