This file contains: the AUDPC (Area under the disease progress curve) calculated on the sporulation percentage of the most infected leaf of each replicate. Percentage of leaf showing sporulation was scored visually at 14, 21 and 28 days after inoculation. Cross pathogenicity tests were done in a quarantine controlled climate chamber. Forty isolates from five populations were inoculated onto three Malus species ('Tested_species') with two to four accessions ('Tested_accession') per Malus species. Population names indicate the geographic origin (Asia or EU:Europe), the environment of origin (Wild or Agro: Agro-ecosystem) and the host of origin of the isolates (Malus sieversii, M. x domestica or M. sylevstris). Inoculations were done in 10 experiments
