QTL Analysis of Apple Blotch Resistance in Malus baccata 'Jackii' Offspring

Dresden-Pillnitz research from 2023 to 2025 investigated the inheritance of apple blotch resistance. The dataset contains phenotypic and genotypic data from 122 F1 individuals and open-pollinated populations, used to identify four quantitative trait loci (QTLs). Matthias Pfeifer published the findings on figshare in 2026 under a CC-BY-4.0 license.

Use Cases

• Identifying candidate genomic regions for apple blotch resistance based on the four reported QTLs.
• Studying polygenic inheritance patterns in fruit trees using phenotypic severity scores and genetic markers.
• Validating QTL effects under different environmental conditions as suggested by the study's findings.

Strengths

• Data underpins a specific study with reported LOD scores between 4.86 and 8.37 for identified QTLs.
• The analysis explains between 17.3% and 32.4% of the phenotypic variance for the trait.
• Includes data from a controlled F1 population of 122 individuals and related open-pollinated groups.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The 730.8 KB file size suggests a limited scope, likely containing summary results rather than raw sequencing data.

Provenance

Source

Matthias Pfeifer via figshare.

Collection Method

Artificial inoculations and QTL analysis using simple interval mapping.

Time Range

Study conducted between 2023 and 2025.

Freshness

Last updated 2026-06-03 05:56:26; freshness should be verified.

Geography

Research conducted in Dresden-Pillnitz.