The Mapo is the cross between the Avana cultivar mandarin and the Duncan cultivar grapefruit. It was obtained in 1950 in the Research Center for Citrus Growing and Mediterranean Crops (ACM) in Acireale and released for cultivation in 1972. Its shape is the same as that of grapefruit, but slightly smaller. It is characterized by a pleasantly sour taste with some mandarin notes, the pulp is of a uniform yellow-orange colour, the thin outer skin is of a bright green color which turns yellow after maturation, while the tree has a medium-strong structure with extended globular habit with branches that tend to bend downwards and thorns present only in the more robust branches. The first to experiment with the crossing was the Sicilian agronomist Francesco Russo in the 1970s. The Mapo Mapo liqueur produced by Campari Group is produced from this fruit.