Incompatible (S-) genotypes of sweet cherry cultivars (Prunus avium L.)

► S-genotypes of 51 sweet cherry accessions were identified for the first time. ► The S-allele data of 734 sweet cherry accessions were summarized up to 2012. ► 18 different S-alleles in 62 S-genotypes were distinguished in sweet cherry. ► The S-genotypes are divided into 47 different incompatibility groups. ► 15 unique S-genotypes were combined in a group 0.