High-Density SNP Linkage Map and QTL Hotspot for Early Maturity in Ridge Gourd

A high-density genetic linkage map containing 4,035 representative bin markers across 13 linkage groups for ridge gourd (Luffa acutangula). The data was generated from whole-genome resequencing of two parental lines and 144 F₂ individuals, identifying eight significant QTLs, most clustered on LG3. The dataset, authored by Qin Chen and shared under a CC-BY-4.0 license, was last updated on May 28, 2026.

Use Cases

• Fine mapping of candidate genes for early maturity based on the anchored 7.03 Mb interval on chromosome 3.
• Marker-assisted selection in ridge gourd breeding programs using the identified SNP markers and QTL hotspots.
• Comparative genomics studies in cucurbits leveraging the high-density linkage map constructed from 4,035 bin markers.
• Prioritizing candidate genes like Lac03g1231 and Lac03g1281 for functional validation experiments.

Strengths

• The linkage map is described as high-density, containing 4,035 representative bin markers.
• The QTL analysis identified eight significant loci and anchored a major hotspot to a specific 7.03 Mb genomic interval containing 136 annotated genes.
• The underlying data comes from whole-genome resequencing of two parents and 144 F₂ individuals, suggesting a genomic-scale foundation.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for specific analytical tasks.
• The dataset is very small (5.4 KB), indicating it likely contains summary results rather than raw sequencing data.

Provenance

Source

figshare

Collection Method

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

Freshness

Last updated 2026-05-28 06:26:09; freshness should be verified.