Rubber genetics and breeding at Cirad-France Country report of activities from 2007 to 2011 (AGAP research unit)

Clément-Demange André, Garcia Dominique, Le Guen Vincent, Pujade-Renaud Valérie, Montoro Pascal, Seguin Marc. 2011. Rubber genetics and breeding at Cirad-France Country report of activities from 2007 to 2011 (AGAP research unit). In : IRRDB Breeding Group Workshop, Bahia, Brazil, 4-7 April 2011. s.l. : s.n., 21 p. IRRDB Breeding Group Workshop, Bahia, Brésil, 4 Avril 2011/7 Avril 2011.

Résumé : In Cirad and the research unit " AGAP ", the two groups EGV (Marc Seguin et al.) and BURST (Pascal Montoro et al.) work on rubber genetics and molecular physiology respectively. Whereas BURST group is related with the IRRDB biotechnology group, EGV is more closely associated with the IRRDB breeding group. The main rubber research activities of EGV group are the development of molecular genetic markers for application to rubber breeding including clonal identification, genetic diversity analysis, and QTL-mapping. QTL-mapping was notably applied to the analysis of genetic determinism of SALB resistance sources in Wickham x Amazonian families (CMB = Cirad-Michelin-Brazil project), and extended to a Wickham x Wickham family for the study of growth, latex production and molar mass distribution of rubber chains in native rubber. In the CMB project, SSH banks were created for the generation of ESTs and candidate gene identification, from which a new series of EST-SSR markers were produced. In Brazil, the CMB project also develops a conventional programme of creation and selection of clones, either productive and tolerant to SALB, or adapted to supoptimal areas. Hevea x Corynespora interactions are studied with view to develop resistance breeding. In partnership with IFC (French Rubber Institute), a collaborative network of Large Scale Clonal Trials (LSCT) was developed for characterizing rubber clones, including the IRCA clones issued from a CNRA-Cirad cooperation in Côte d'Ivoire, thus allowing the up-dating of clonal recommendations in Africa.

Mots-clés Agrovoc : Hevea brasiliensis, Corynespora cassiicola

Mots-clés géographiques Agrovoc : Thaïlande, Côte d'Ivoire, Sao Paulo, Brésil, Bahia, Nigéria, Sumatra, Malaisie, Philippines, Afrique

Classification Agris : F30 - Génétique et amélioration des plantes
F62 - Physiologie végétale - Croissance et développement
H20 - Maladies des plantes

Auteurs et affiliations

• Clément-Demange André, CIRAD-BIOS-UMR AGAP (FRA)
• Garcia Dominique, CIRAD-BIOS-UMR AGAP (FRA)
• Le Guen Vincent, CIRAD-BIOS-UMR AGAP (FRA)
• Pujade-Renaud Valérie, CIRAD-BIOS-UMR AGAP (FRA)
• Montoro Pascal, CIRAD-BIOS-UMR AGAP (FRA)
• Seguin Marc, CIRAD-BIOS-UMR AGAP (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/560064/)

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