Currently, germplasm collecting missions demand high amounts of resources (i.e. skilled staff, travelling expenses, time, etc), in order to find relevant material to conserve ex-situ. We, as Gap Analysis team, have the challenge of developing an approach that will allow collectors (and other people related with ex-situ and in-situ conservation) to know which areas around the world, traits and taxa still unrepresented among target CGIAR genebank collections.