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

Qin Chen published a genetic dataset on figshare in 2026. It contains a high-density genetic linkage map built from 4,035 bin markers across 13 linkage groups, derived from whole-genome resequencing of 144 F₂ individuals. The data identifies eight significant QTLs, including a major multi-trait hotspot on LG3 anchored to a 7.03 Mb interval.

Use Cases

• Conducting QTL fine-mapping studies based on the identified hotspot on LG3.
• Prioritizing candidate genes for functional validation based on the 136 annotated genes in the 7.03 Mb interval.
• Designing marker-assisted breeding programs for early maturity in ridge gourd based on the identified SNP markers.
• Performing comparative genomics analyses using the high-density linkage map as a reference for other cucurbit species.

Strengths

• The linkage map is high-density, containing 4,035 representative bin markers.
• QTL analysis identified eight significant loci, providing a clear genetic framework.
• The major QTL hotspot is anchored to a specific 7.03 Mb genomic interval containing 136 annotated genes.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment for certain analyses.
• The dataset is very small (10.7 KB), indicating limited scope, likely containing summary statistics rather than raw sequence data.

Provenance

Source

figshare, author Qin Chen.

Collection Method

Data generated from whole-genome resequencing of two parental lines and 144 F₂ individuals from a cross, followed by SNP discovery, binning, and linkage-map construction.

Freshness

Last updated 2026-05-28 06:26:08; freshness should be verified.