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24, chemin de Borde Rouge –Auzeville – CS52627
31326 Castanet Tolosan CEDEX - France

Dernière mise à jour : Mai 2018

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Peach Phenols Against Monilinia (2016 - 2018)

Project Agropolis Fondation and EMBRAPA - Coordinator : Bénédicte Quilot (GAFL)

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Exploration of the genetic variability of peach phenolic and triterpenoid compounds as natural defense against brown rot

The general objective is to contribute to develop sustainable ways to fight against peach fruit brown rot. It will help to define new targets of selection, new sources of resistance in breeding programs and to guide biofungicides development.

Experiments planned are intending to describe the variability of secondary compounds of peach fruit within the Brazilian and French materials (Brazilian peach collection and french interspecific peach progeny) together with their behavior towardsMonilinia. Both populations have been extensively genotyped and marker data are already available for genetic studies. The data analysis will help deciphering their genetic control and identify secondary compounds from peach that could play a role in the control of brown rot. The fungicide activity of the latter will be tested in vitro. In vitro analysis has the purpose of better understanding the relationship of phenolic compounds identified in our previous work and considered as responsible for promoting greater resistance to brown rot. The association and QTL analyses aim to identify loci related to resistance providing tools for the implementation of marker assisted selection.