Citrus production represents a major fruit crop in the Mediterranean as well as in the rest of the world, and citrus genetic resources are the cornerstone of citrus research, cultivation and breeding programs. To develop these activities, ex-situ germplasm collections were constructed in several countries. For more than fifty years, the SRA (Station de recherche agronomique) INRA (Institut national de la recherche agronomique)-CIRAD (Centre international de recherche et d’aide au développemen...