Time: 1:35 PM
An example is given for the study of quality traits carried out in a collection of genetic resources corresponding to an hybrid « Nacional » pool, cultivated in Ecuador and characterised by its floral flavor allowing to classify it as fine flavor cocoa.
Quality traits of each of the 170 individuals of this population has been characterised for sensorial and biochemical (108 volatils and 7 non volatils) traits evaluated on non roasted and roasted cocoa beans, and potentially linked to quality. The population was genotyped with 180 SSR. Many marker/trait associations were revealed for sensorial and biochemical traits.
The search for candidate genes involved in the trait variation was made with the Criollo genome sequence. Several candidate genes have been identified, and particularly for polyphenols, fat and terpenes compound variation.