Agritrop
Home

Genetic and physical mapping of resistance and defence gene analogs colocalised with QTL of resistance for Phytophthora in cocoa [ fruit trees. P 600]

Lanaud Claire, Clément Didier, Fouet Olivier, Ruiz Manuel, Le Cunff Loïc, Risterucci Ange-Marie, Sabau Xavier, Glaszmann Jean-Christophe, Piffanelli Pietro. 2004. Genetic and physical mapping of resistance and defence gene analogs colocalised with QTL of resistance for Phytophthora in cocoa [ fruit trees. P 600]. . s.l. : s.n. Plant and Animal Genomes Conference. 12, San Diego, États-Unis, 10 January 2004/14 January 2004.

Poster
Full text not available from this repository.

Abstract : Resistance and defence gene analogs (RGA and DGA) have been isolated in cocoa using a PCR-based approach. Among 36 cocoa DNA fragments homologous to known resistance or defence genes, 16 corresponding to unique RFLP profiles could be mapped. One cluster of DGA and three clusters of RGA have been identified in the cocoa genome. One cluster corresponded to 2 PR2 like sequences, two clusters corresponded to genes encoding cytoplasmic receptor-like protein containing a nucleotide binding site (NBS). Another cluster gathers four analogs to the tomato Pto gene and one analog to the LRK10 wheat rust resistance gene, corresponding to genes which contain a serine threonine kinase domain (STK). This last cluster is colocalised with 4 QTLs of resistance to Phytophthora identified in previous QTL mapping studies. A BAC library was constructed from the Scavina 6 resistant genotype and used to begin physical mapping of the chromosome regions containing these RGA/DGA clusters. (Texte intégral)

Mots-clés Agrovoc : Theobroma cacao, Résistance aux maladies, Phytophthora, Carte génétique, ADN, Locus des caractères quantitatifs, Collection de matériel génétique, PCR

Mots-clés complémentaires : Bac, QTL

Classification Agris : F30 - Plant genetics and breeding
H20 - Plant diseases

Auteurs et affiliations

Autres liens de la publication

Source : Cirad - Agritrop (https://agritrop.cirad.fr/525288/)

View Item (staff only) View Item (staff only)

[ Page générée et mise en cache le 2021-02-27 ]