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Production scientifique ISA 2006-2012 Article de périodique A'Hara, S.W. ; Amouroux, P. ; Argo, E.E. ; Avand-Faghih, A. ; Barat, A. ; Barbieri, L. ; Bert, T.M. ; Blatrix, R. ; Blin, A. ; Bouktila, D. ; Broome, A. ; Burban, C. ; Capdevielle-Dulac, C. ; Casse, N. ; Chandra, S. ; Cho Kyung Jin ; Cottrell, J.E. ; Crawford, C.R. ; Davis, M.C. ; Delatte, H. ; Desneux, N. ; Djieto-Lordon, C. ; Dubois, M.P. ; El-Mergawy, A.A.M. ; Gallardo-Escarate, C. ; Garcia, M. ; Gardiner, M.M. ; Guillemaud, T. ; Haye, P.A. ; Hellemans, B. ; Hinrichsen, P. ; Hyun Jeon, J.I. ; Kerdelhue, C. ; Kharrat, I. ; Ki Hwan Kim ; Yong Yul Kim ; Ye-Seul Kwan ; Labbe, E.M. ; Lahood, E. ; Kyung Mi Lee ; Wan-Ok Lee ; Yat-Hung Lee ; Legoff, I. ; LI, H. ; Chung-Ping Lin ; Liu, S.S. ; Liu, Y.G. ; Long, D. ; Maes, G.E. ; Magnoux, E. ; Prabin Chandra Mahanta ; Makni, H. ; Makni, M. ; Malausa, T. ; Rakesh Matura ; McKey, D. ; McMillen-Jackson, A.L. ; Mendez, M.A. ; Mezghani-Khemakhem, M. ; Michel, A.P. ; Paul, M. ; Muriel-Cunha, J. ; Nibouche, S. ; Normand, F. ; Palkovacs, E.P. ; Pande, V. ; Parmentier, K. ; Peccoud, J. ; Piats-Check, D. ; Puchulutegui, C. ; Ramos, R. ; Ravest, G. ; Richner, H. ; Robbens, J. ; Rochat, D. ; Rousselet, J. ; Saladin, V. ; Sauve, M. ; Schlei, O. ; Schultz, T.F. ; Scobie, A.R. ; Segovia, N.I. ; Seyoum, S. ; Silvain, J.F. ; Tabone, E. ; Van Houdt, J.K.J. ; Vandamme, S.G. ; Volckaert, A.M. ; Wenburg, J. ; Willis, T.V. ; Yong-Jin Won ; Ye, N.H. ; Zhang, W. ; Zhang, Y.X. Permanent genetic resources added to molecular ecology resources database 1 august 2011-30 september 2011. Molecular Ecology Resources. 2012, 12 (1) : 185-189. This article documents the addition of 299 microsatellite marker loci and nine pairs of single-nucleotide polymorphism (SNP) EPIC primers to the Molecular Ecology Resources (MER) Database. Loci were developed for the following species: Alosa pseudoharengus, Alosa aestivalis, Aphis spiraecola, Argopecten purpuratus, Coreoleuciscus splendidus, Garra gotyla, Hippodamia convergens, Linnaea borealis,Menippe mercenaria,Menippe adina, Parus major, Pinus densiflora, Portunus trituberculatus, Procontarinia mangiferae, Rhynchophorus ferrugineus, Schizothorax richardsonii, Scophthalmus rhombus, Tetraponera aethiops, Thaumetopoea pityocampa, Tuta absoluta and Ugni molinae. These loci were cross-tested on the following species: Barilius bendelisis, Chiromantes haematocheir, Eriocheir sinensis, Eucalyptus camaldulensis, Eucalyptus cladocalix, Eucalyptus globulus, Garra litaninsis vishwanath, Garra para lissorhynchus, Guindilla trinervis, Hemigrapsus sanguineus, Luma chequen. Guayaba, Myrceugenia colchagu¨ensis, Myrceugenia correifolia, Myrceugenia exsucca, Parasesarma plicatum, Parus major, Portunus pelagicus, Psidium guayaba, Schizothorax richardsonii, Scophthalmus maximus, Tetraponera latifrons, Thaumetopoea bonjeani, Thaumetopoea ispartensis, Thaumetopoea libanotica, Thaumetopoea pinivora, Thaumetopoea pityocampa ena clade, Thaumetopoea solitaria, Thaumetopoea wilkinsoni and Tor putitora. This article also documents the addition of nine EPIC primer pairs for Euphaea decorata, Euphaea formosa, Euphaea ornata and Euphaea yayeyamana. Abad, P. ; Gouzy, J. ; Aury, J.M. ; Castagnone, P. ; Danchin, E. ; Deleury, E. ; Perfus-Barbeoch, L. ; Anthouard, V. ; Artiguenave, F. ; Blok, V.C. ; Caillaud, M.C. ; Coutinho, P.M. ; Dasilva, C. ; De Luca, F. ; Deau, F. ; Esquibet, M. ; Flutre, T. ; Goldstone, J.V. ; Hamamouch, N. ; Hewezi, T. ; Jaillon, O. ; Jubin, C. ; Leonetti, P. ; Magliano, M. ; Maier, T.R. ; Markov, G.V. ; McVeigh, P. ; Pesole, G. ; Poulain, J. ; Robinson-Rechavi, M. ; Sallet, E. ; Ségurens, B. ; Steinbach, D. ; Tytgat, T. ; Ugarte, E. ; Van Ghelder, C. ; Veronico, P. ; Baum, T.J. ; Blaxter, M. ; Bleve-Zacheo, T. ; Davis, E.L. ; Ewbank, J.J. ; Favery, B. ; Grenier, E. ; Henrissat, B. ; Jones, J.T. ; Laudet, V. ; Maule, A.G. ; Quesneville, H. ; Rosso, M.N. ; Schiex, T. ; Smant, G. ; Weissenbach, J. ; Wincker, P. Genome sequence of the metazoan plant-parasitic nematode Meloidogyne incognita. Nature Biotechnology. 2008, 26 (8) : 909-915. Plant-parasitic nematodes are major agricultural pests worldwide and novel approaches to control them are sorely needed. We report the draft genome sequence of the root-knot nematode Meloidogyne incognita, a biotrophic parasite of many crops, including tomato, cotton and coffee. Most of the assembled sequence of this asexually reproducing nematode, totaling 86 Mb, exists in pairs of homologous but divergent segments. This suggests that ancient allelic regions in M. incognita are evolving toward effective haploidy, permitting new mechanisms of adaptation. The number and diversity of plant cell wall-degrading enzymes in M. incognita is unprecedented in any animal for which a genome sequence is available, and may derive from multiple horizontal gene transfers from bacterial sources. Our results provide insights into the adaptations required by metazoans to successfully parasitize immunocompetent plants, and open the way for discovering new antiparasitic strategies Abad, P. ; Williamson, V.M. Plant Nematode Interaction: A Sophisticated Dialogue. Advances in Botanical Research. 2010, 53 : 147-192. Research on nematode parasitism tackles fundamental questions in plant development and host–parasite interaction. The plant-parasitic cyst and root-knot nematodes (RKNs) have evolved sophisticated strategies for exploiting plants with high impacts in agriculture worldwide. We review here recent knowledge acquired on putative parasitism genes and on their roles in the formation of permanent feeding sites within the host plant roots to ensure nematode survival. One of the most intriguing questions is how these nematodes are able to modulate or circumvent the host defence system. We then also discuss the mechanisms underlying the co-evolution between host plant resistance and nematode virulence. Finally, we present a brief overview of the status of genomic researches in RKNs. Their impacts in providing the development of environmentally sustainable new control strategies and fundamental clues as to the evolution and biology in plant-parasitic nematodes (PPNs) are illustrated. Akhmetzhanov, A.R. ; Grognard, F. ; Mailleret, L. Optimal life history strategies in seasonal consumer-resource dynamics. Evolution. 2011, 65 (11) : 3113-3125. The interplay between individual adaptive life histories and populations dynamics is an important issue in ecology. In this context, we considered a seasonal consumer-resource model with nonoverlapping generations. We focused on the consumers decision-making process through which they maximize their reproductive output via a differential investment into foraging for resources or reproducing. Our model takes a semi-discrete form, and is composed of a continuous time within-season part, similar to a dynamic model of energy allocation, and of a discrete time part, depicting the between seasons reproduction and mortality processes. We showed that the optimal foraging-reproduction strategies of the consumers may be “determinate” or “indeterminate” depending on the season length. More surprisingly, it depended on the consumers population density as well, with large densities promoting indeterminacy. A bifurcation analysis showed that the long-term dynamics produced by this model were quite rich, ranging from both populations’ extinction, coexistence at some season-to-season equilibrium or on (quasi)-periodic motions, to initial condition-dependent dynamics. Interestingly, we observed that any long-term sustainable situation corresponds to indeterminate consumers’ strategies. Finally, a comparison with a model involving typical nonoptimal consumers highlighted the stabilizing effects of the optimal life histories of the consumers Alkhalfioui, F. ; Renard, M. ; Frendo, P. ; Keichinger, K. ; Meyer, Y. ; Gelhaye, É. ; Hirasawa, M. ; Knaff, D.B. ; Ritzenthaler, C. ; Montrichard, F. A novel type of thioredoxin dedicated to symbiosis in legumes. Plant Physiology. 2008, 148 (1) : 424-435. Thioredoxins (Trxs) constitute a family of small proteins in plants. This family has been extensively characterized in Arabidopsis (Arabidopsis Source : ProdINRA http://www.prodinra.inra.fr/prodinra/, date d'édition mercredi 25 avril 2012 12:25:24. Copyright INRA 2012 page 1
thaliana), which contains six different Trx types: f, m, x, and y in chloroplasts, o in mitochondria, and h mainly in cytosol. A detailed study of this family in the model legume Medicago truncatula, realized here, has established the existence of two isoforms that do not belong to any of the types previously described. As no possible orthologs were further found in either rice (Oryza sativa) or poplar (Populus spp.), these novel isoforms may be specific for legumes. Nevertheless, on the basis of protein sequence and gene structure, they are both related to Trxs m and probably have evolved from Trxs m after the divergence of the higher plant families. They have redox potential values similar to those of the classical Trxs, and one of them can act as a substrate for the M. truncatula NADP-Trx reductase A. However, they differ from classical Trxs in that they possess an atypical putative catalytic site and lack disulfide reductase activity with insulin. Another important feature is the presence in both proteins of an N-terminal extension containing a putative signal peptide that targets them to the endoplasmic reticulum, as demonstrated by their transient expression in fusion with the green fluorescent protein in M. truncatula or Nicotiana benthamiana leaves. According to their pattern of expression, these novel isoforms function specifically in symbiotic interactions in legumes. They were therefore given the name of Trxs s, s for symbiosis. Amselem, J. ; Cuomo, C.A. ; van Kan, J.A. ; Viaud, M. ; Benito, E.P. ; Couloux, A. ; Coutinho, P.M. ; de Vries, R.P. ; Dyer, P.S. ; Fillinger-David, S. ; Fournier, E. ; Fournier, E. ; Gout, L. ; Hahn, M. ; Kohn, L. ; Lapalu, N. ; Plummer, K.M. ; Pradier, J.M. ; Quevillon, E. ; Sharon, A. ; Simon, A. ; Have, A.T. ; Tudzynski, B. ; Tudzynski, P. ; Wincker, P. ; Andrew, M. ; Anthouard, V. ; Beever, R.E. ; Beffa, R. ; Benoit, I. ; Bouzid, O. ; Brault, B. ; Chen, Z. ; Choquer, M. ; Collemare, J. ; Cotton, P. ; Danchin, E. ; Da Silva, C. ; Gautier, A. ; Giraud-Delville, C. ; Giraud, T ; Gonzalez, C. ; Grossetete, s; ; Guldener, U. ; Henrissat, B. ; Howlett, B.J. ; Kodira, C. ; Kretschmer, M. ; Lappartient, A. ; Leroch, M. ; Levis, C. ; Mauceli, E. ; Neuveglise-Degouy, C. ; Ceser, B. ; Pearson, M. ; Poulain, J. ; Poussereau, N. ; Quesneville, H. ; Rascle, C. ; Schumacher, J. ; Ségurens, B. ; Sexton, A. ; Silva, E. ; Sirven, C. ; Soanes, D.M. ; Talbot, N.J. ; Templeton, M. ; Yandava, C. ; Yarden, O. ; Zeng, Q. ; Rollins, J.A. ; Lebrun, M.H. ; Dickman, M. Genomic analysis of the necrotrophic fungal pathogen sclerotinia sclerotiorum and botrytis cinerea. Plos Genetics. 2011, 7 (8) : e1002230. Sclerotinia sclerotiorum and Botrytis cinerea are closely related necrotrophic plant pathogenic fungi notable for their wide host ranges and environmental persistence. These attributes have made these species models for understanding the complexity of necrotrophic, broad host-range pathogenicity. Despite their similarities, the two species differ in mating behaviour and the ability to produce asexual spores. We have sequenced the genomes of one strain of S. sclerotiorum and two strains of B. cinerea. The comparative analysis of these genomes relative to one another and to other sequenced fungal genomes is provided here. Their 38–39 Mb genomes include 11,860–14,270 predicted genes, which share 83% amino acid identity on average between the two species. We have mapped the S. sclerotiorum assembly to 16 chromosomes and found large-scale co-linearity with the B. cinerea genomes. Seven percent of the S. sclerotiorum genome comprises transposable elements compared to