Genetic diversity of cocoa tree Phytophthora pathogens

Ducamp Michel, Nyassé Salomon, Grivet Laurent, Thévenin Jean-Marc, Blaha Georges, Despréaux Denis, Cilas Christian. 2004. Genetic diversity of cocoa tree Phytophthora pathogens. In : Improvement of cocoa tree resistance to Phytophthora diseases. Cilas Christian (ed.), Despréaux Denis (ed.). Montpellier : CIRAD, 45-75. (Repères) ISBN 2-87614-562-6

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Autre titre : Diversité génétique des Phytophthora pathogènes du cacaoyer

Résumé : Before searching for individuals resistant to pod rot disease caused by various species of the genus #Phytophthora#, it is essential to study pathogen diversity. Good knowledge of that diversity provides a clearer understanding of the diversity of attacks, notably of "host x pathogen" interactions that might sometimes complicate the search for resistance. This chapter therefore proposes a review of the genetic diversity of cocoa tree #Phytophthora# pathogens. This genetic diversity is investigated using various recently developed molecular tools. Following an introduction to the different cocoa tree pathogen species, the diversity of the moste widespread species will be examined.

Mots-clés Agrovoc : Theobroma cacao, Phytophthora palmivora, Phytophthora capsici, distribution géographique, variation génétique, taxonomie, relation hôte pathogène

Mots-clés complémentaires : Phytophthora megakarya

Classification Agris : H20 - Maladies des plantes
F30 - Génétique et amélioration des plantes

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

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