High-Density SNP Linkage Map for Early-Maturity Traits in Ridge Gourd

A high-density genetic linkage map containing 4,035 representative bin markers across 13 linkage groups was constructed from an F2 population of 147 ridge gourd plants. The dataset, authored by Qin Chen and published on figshare in 2026, identifies eight significant QTLs, most clustering into a major hotspot on linkage group 3. This hotspot is anchored to a 7.03 Mb interval containing 136 annotated genes, with two prioritized as candidate genes.

Use Cases

• Fine mapping of candidate genes based on the identified 7.03 Mb QTL hotspot interval.
• Marker-assisted breeding for early-maturity traits using the 4,035 bin markers.
• Comparative genomics analysis leveraging the high-density linkage map across 13 linkage groups.
• Functional validation studies targeting the prioritized candidate genes Lac03g1231 and Lac03g1281.

Strengths

• The linkage map is high-density, containing 4,035 representative bin markers.
• QTL analysis identified eight significant loci, with a major multi-trait hotspot anchored to a specific 7.03 Mb genomic interval.
• The study prioritized two biologically plausible candidate genes (Lac03g1231 and Lac03g1281) from 136 annotated genes in the hotspot.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The dataset is small (17.0 KB), indicating limited raw data scope.

Provenance

Source

figshare

Collection Method

Whole-genome resequencing of two parental lines and 144 F2 individuals from a cross, used for SNP discovery, binning, and QTL analysis.

Freshness

Last updated 2026-05-28 06:26:03; freshness should be verified.