Claim · model-written summary
Two acidity QTLs were found on linkage groups 16 and 8 in apple breeding families.
- Taxon
- apple
Malus domesticat0 - Gene
- Ma locuse0
- Outcome
- only two QTLse0
- Value
- two QTLse0
Not reportedMaterialCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentComparatorSettingDirectionQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Verbatim
t0“apple fruit”
e0“evidence was found for only two QTLs, on linkage groups 16 (the reported Ma locus) and LG 8 (here called Ma3) that jointly explained 66 ± 5% of the phenotypic variation.”
Title
S. Verma; K. Evans; Y. Guan; et al. Tree Genetics & Genomes 2019. doi:10.1007/s11295-019-1324-y
Other claims from this paper (9)
- Association The two apple acidity QTLs jointly explained 66 ± 5% of phenotypic variation.
- Method / resource An additive dosage model explained most apple acidity variation.
- Association Each high-acidity allele increased apple fruit acidity by an average of 1.8 mg/L at harvest.
- Association More high-acidity alleles were associated with faster acidity depletion during storage.
- Observation All allele combinations appeared to converge toward a common acidity baseline with storage.
- Observation Every parent cultivar and selection carried one or two of four possible high-acidity alleles.
- Observation Each acidity QTL had a rare second high-acidity allele with a different effect.
- Method / resource Diagnostic SNP markers were identified for QTL alleles from distinct sources.
- Recommendation Combined QTL effects showed potential for DNA based targeting of desired apple acidity in new cultivars.