A cultivated Cucumis melo plant comprising resistance against Melon Yellowing associated Virus (MYaV), wherein said resistance is conferred by an introgression fragment on chromosome 6 in homozygous or heterozygous form and wherein said introgression fragment is from a wild plant of the species Cucumis melo, which wild plant has an average MYaV disease score of at least 8, on a scale of 1 = totally yellow leaves to 9 = totally green leaves when grown in an MYaV infested area and wherein said introgression fragment is obtainable by crossing a plant of which seeds were deposited under NCIMB 41966 or NCIMB 41969 with a cultivated melon plant and wherein the introgression fragment is detectable by a molecular marker assay which detects the following two Single Nucleotide Polymorphism (SNP) markers: a) the CC or AC genotype for the SNP marker mME15090 at nucleotide 71 of SEQ ID NO: 1; b) the AA or AG genotype for the SNP marker mME12135 at nucleotide 71 of SEQ ID NO: 3. and further detects at least two of the Single Nucleotide Polymorphism markers selected from the group consisting of: - the GG or AG genotype for the SNP marker mME40332 at nucleotide 71 of SEQ ID NO: 2; - the TT or AT genotype for the SNP marker mME28908 at nucleotide 71 of SEQ ID NO: 4; - the TT genotype for the SNP marker mME36531 at nucleotide 71 of SEQ ID NO: 5; - the AA or AT genotype for the SNP marker mME9692 at nucleotide 71 of SEQ ID NO: 6; - the CC or CT genotype for the SNP marker mME50656 at nucleotide 71 of SEQ ID NO: 7; or further detects at least two of the Single Nucleotide Polymorphism markers selected from the group consisting of: - the AA or AG genotype for the SNP marker mME21377 at nucleotide 71 of SEQ ID NO: 8; - the TT or GT genotype for the SNP marker mME36533 at nucleotide 71 of SEQ ID NO: 11; - the TT or CT genotype for the SNP marker mME13585 at nucleotide 71 of SEQ ID NO: 12. a) the CC or AC genotype for the SNP marker mME15090 at nucleotide 71 of SEQ ID NO: 1; b) the AA or AG genotype for the SNP marker mME12135 at nucleotide 71 of SEQ ID NO: 3. and further detects at least two of the Single Nucleotide Polymorphism markers selected from the group consisting of: - the GG or AG genotype for the SNP marker mME40332 at nucleotide 71 of SEQ ID NO: 2; - the TT or AT genotype for the SNP marker mME28908 at nucleotide 71 of SEQ ID NO: 4; - the TT genotype for the SNP marker mME36531 at nucleotide 71 of SEQ ID NO: 5; - the AA or AT genotype for the SNP marker mME9692 at nucleotide 71 of SEQ ID NO: 6; - the CC or CT genotype for the SNP marker mME50656 at nucleotide 71 of SEQ ID NO: 7; - the GG or AG genotype for the SNP marker mME40332 at nucleotide 71 of SEQ ID NO: 2; - the TT or AT genotype for the SNP marker mME28908 at nucleotide 71 of SEQ ID NO: 4; - the TT genotype for the SNP marker mME36531 at nucleotide 71 of SEQ ID NO: 5; - the AA or AT genotype for the SNP marker mME9692 at nucleotide 71 of SEQ ID NO: 6; - the CC or CT genotype for the SNP marker mME50656 at nucleotide 71 of SEQ ID NO: 7; or further detects at least two of the Single Nucleotide Polymorphism markers selected from the group consisting of: - the AA or AG genotype for the SNP marker mME21377 at nucleotide 71 of SEQ ID NO: 8; - the TT or GT genotype for the SNP marker mME36533 at nucleotide 71 of SEQ ID NO: 11; - the TT or CT genotype for the SNP marker mME13585 at nucleotide 71 of SEQ ID NO: 12. - the AA or AG genotype for the SNP marker mME21377 at nucleotide 71 of SEQ ID NO: 8; - the TT or GT genotype for the SNP marker mME36533 at nucleotide 71 of SEQ ID NO: 11; - the TT or CT genotype for the SNP marker mME13585 at nucleotide 71 of SEQ ID NO: 12. <EOS>