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Featured researches published by Michel Ducamp.


BMC Genomics | 2008

Towards the understanding of the cocoa transcriptome: Production and analysis of an exhaustive dataset of ESTs of Theobroma cacao L. generated from various tissues and under various conditions

Xavier Argout; Olivier Fouet; Patrick Wincker; Karina Peres Gramacho; Thierry Legavre; Xavier Sabau; Ange-Marie Risterucci; Corinne Da Silva; Júlio César de Mattos Cascardo; Mathilde Allègre; David N. Kuhn; Joseph A. Verica; Brigitte Courtois; Gaston Loor; Regis Babin; Olivier Sounigo; Michel Ducamp; Mark J. Guiltinan; Manuel Ruiz; Laurence Alemanno; Regina Machado; Wilberth Phillips; Ray Schnell; Martin Gilmour; Eric Rosenquist; David R. Butler; Siela N. Maximova; Claire Lanaud

BackgroundTheobroma cacao L., is a tree originated from the tropical rainforest of South America. It is one of the major cash crops for many tropical countries. T. cacao is mainly produced on smallholdings, providing resources for 14 million farmers. Disease resistance and T. cacao quality improvement are two important challenges for all actors of cocoa and chocolate production. T. cacao is seriously affected by pests and fungal diseases, responsible for more than 40% yield losses and quality improvement, nutritional and organoleptic, is also important for consumers. An international collaboration was formed to develop an EST genomic resource database for cacao.ResultsFifty-six cDNA libraries were constructed from different organs, different genotypes and different environmental conditions. A total of 149,650 valid EST sequences were generated corresponding to 48,594 unigenes, 12,692 contigs and 35,902 singletons. A total of 29,849 unigenes shared significant homology with public sequences from other species.Gene Ontology (GO) annotation was applied to distribute the ESTs among the main GO categories.A specific information system (ESTtik) was constructed to process, store and manage this EST collection allowing the user to query a database.To check the representativeness of our EST collection, we looked for the genes known to be involved in two different metabolic pathways extensively studied in other plant species and important for T. cacao qualities: the flavonoid and the terpene pathways. Most of the enzymes described in other crops for these two metabolic pathways were found in our EST collection.A large collection of new genetic markers was provided by this ESTs collection.ConclusionThis EST collection displays a good representation of the T. cacao transcriptome, suitable for analysis of biochemical pathways based on oligonucleotide microarrays derived from these ESTs. It will provide numerous genetic markers that will allow the construction of a high density gene map of T. cacao. This EST collection represents a unique and important molecular resource for T. cacao study and improvement, facilitating the discovery of candidate genes for important T. cacao trait variation.


Theoretical and Applied Genetics | 2003

Identification of QTLs related to cocoa resistance to three species of Phytophthora

Ange-Marie Risterucci; Didier Paulin; Michel Ducamp; Jeanne A.K. N'Goran; Claire Lanaud


Scientia Horticulturae | 2007

Twenty years of agronomic evaluation of wild cocoa trees (Theobroma cacao L.) from French Guiana

Philippe Lachenaud; Didier Paulin; Michel Ducamp; Jean-Marc Thévenin


Crop Protection | 2008

New sources of resistance to Phytophthora megakarya identified in wild cocoa tree populations of French Guiana

Didier Paulin; Michel Ducamp; Philippe Lachenaud


Plantations, recherche, développement | 1998

La résistance à la pourriture des cabosses due à #Phytophthora# spp., recherche des composantes de la résistance

Christian Cilas; Claire Lanaud; Didier Paulin; Salomon Nyassé; Jeanne A.K. N'Goran; Boubacar Ismaël Kébé; Michel Ducamp; Marie-Henriette Flament; Ange-Marie Risterucci; Isabelle Pieretti; Olivier Sounigo; Jean-Marc Thévenin; Denis Despréaux


Archive | 2004

Genetic diversity of cocoa tree #Phytophthora# pathogens

Michel Ducamp; Salomon Nyassé; Laurent Grivet; Jean-Marc Thévenin; Georges Blaha; Denis Despréaux; Christian Cilas


14th International Cocoa Research Conference. Proceedings : rumo a uma economia sustentavel do cacau - quais as estrategias para este fim ? | 2005

Evaluation par le test d'inoculation sur feuille du niveau de résistance de trente clones vis-à-vis de plusieurs especes de Phytophthora

Didier Paulin; Michel Ducamp; Katia Vezian-Bonnemayre; Albertus Eskes


Archive | 2010

Highlights of an international collaborative research initiative for the biological control of the black pod disease in Cameroon

Marie-Claude Bon; Roy Bateman; Christian Cilas; Peninna Deberdt; Michel Ducamp; Prakash K. Hebbar; Corinne Hurard; Walker A. Jones; Salomon Nyassé; Eric Rosenquist; Gary J. Samuels; Pierre R. Tondje; Stephan Weise; Tim Widmer


15th International Cocoa Research Conference : cocoa productivity, quality, profitability, human health and the environment | 2010

A large est resource for Theobroma cacao including cDNAS isolated from various organs and under various biotic and abiotic stresses

Claire Lanaud; Olivier Fouet; Karina Peres Gramacho; Xavier Argout; Thierry Legavre; Xavier Sabau; Ange-Marie Risterucci; Patrick Wincker; Corinne Da Silva; Rey Gaston Loor; Uilson Vanderlei Lopes; Julio Cezar M. Cascardo; Brigitte Courtois; David N. Kuhn; Raymond J. Schnell; Bryan A. Bailey; Régis Babin; Olivier Sounigo; Michel Ducamp; Didier Paulin; Peninna Deberdt; Joseph A. Verica; Mark J. Guiltinan; Laurence Alemanno; Regina Machado; Wilbert Phillips; Fabienne Micheli; Abelmon Gesteira; Didier Clément; Siela N. Maximova


Global approaches to cocoa germplasm utilization and conservation: final report of the CFC/ICCO/IPGRI project (1998-2004) and proceedings of the closing workshop, Reading, UK, 28-31 March 2004 | 2006

Isolate by clone interaction as assessed with the leaf disc test in Montpellier

Didier Paulin; Michel Ducamp; Katia Vezian-Bonnemayre; Albertus Eskes

Collaboration


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Didier Paulin

Centre de coopération internationale en recherche agronomique pour le développement

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Claire Lanaud

Centre de coopération internationale en recherche agronomique pour le développement

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Ange-Marie Risterucci

Centre de coopération internationale en recherche agronomique pour le développement

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Jean-Marc Thévenin

Centre de coopération internationale en recherche agronomique pour le développement

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Olivier Sounigo

Centre de coopération internationale en recherche agronomique pour le développement

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Xavier Sabau

Centre de coopération internationale en recherche agronomique pour le développement

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Didier Clément

Centre de coopération internationale en recherche agronomique pour le développement

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Olivier Fouet

Centre de coopération internationale en recherche agronomique pour le développement

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Philippe Lachenaud

Centre de coopération internationale en recherche agronomique pour le développement

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Thierry Legavre

Centre de coopération internationale en recherche agronomique pour le développement

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