Ridge Gourd QTL Hotspot: High-Density SNP Linkage Map for Early-Maturity Traits

Qin Chen published a dataset containing a high-density genetic linkage map for ridge gourd (Luffa acutangula) on figshare in 2026. The map contains 4,035 representative bin markers across 13 linkage groups, derived from whole-genome resequencing of an F₂ population of 147 plants. It identifies eight significant QTLs, including a major multi-trait hotspot on linkage group 3 anchored to a 7.03 Mb interval.

Use Cases

• Fine-mapping candidate genes based on the anchored 7.03 Mb interval on chromosome 3.
• Marker-assisted breeding for early maturity using the identified QTLs and SNP markers.
• Comparative genomics analysis leveraging the high-density linkage map containing 4,035 bin markers.
• Prioritizing candidate genes like Lac03g1231 and Lac03g1281 for functional validation studies.

Strengths

• High-density genetic map containing 4,035 representative bin markers.
• Identifies a major multi-trait QTL hotspot anchored to a specific 7.03 Mb genomic interval.
• Based on whole-genome resequencing data from a structured F₂ population of 147 plants.

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 very small (16.1 KB), suggesting it contains summary results rather than raw sequencing data.

Provenance

Source

Qin Chen

Collection Method

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

Freshness

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