The document summarizes the agenda and organization of the WP1 workshop. It introduces the 5 tasks of WP1 and their leaders, including task 1.2 on developing SNP markers linked to selected traits/loci in apple and peach, led by Andrea Patocchi and Thierry Pascal. It provides an overview of the approaches and methodologies that will be used in tasks 1.1 on breeding strategies, 1.2 on SNP development, 1.3 on pilot studies, 1.4 on genotyping pipelines, and 1.5 on specifying a breeder interface. The partners involved in each task and their responsibilities are also outlined.