High-Density SNP Linkage Map and QTLs for Early Maturity 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 last updated in May 2026, identifies eight significant QTLs for early-maturity traits, with a major multi-trait hotspot anchored to a 7.03 Mb interval on chromosome 3 containing 136 annotated genes.

Use Cases

• Fine mapping of candidate genes for early maturity based on the identified 7.03 Mb QTL hotspot interval.
• Marker-assisted breeding for ridge gourd using the 4,035 bin markers from the high-density linkage map.
• Prioritizing candidate genes for functional validation, such as Lac03g1231 and Lac03g1281, based on QTL co-localization.
• Comparative genomics studies leveraging the genetic map and QTL positions across cucurbit species.

Strengths

• High-density genetic map with 4,035 representative bin markers.
• QTL analysis identifies a major multi-trait hotspot anchored to a specific 7.03 Mb genomic interval.
• Dataset is based on whole-genome resequencing of 144 F2 individuals and two parental lines.

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 (124.9 KB), indicating limited scope, likely containing summary statistics rather than raw sequence data.

Provenance

Source

figshare

Collection Method

Whole-genome resequencing of parental lines and a 147-plant F2 population, followed by SNP discovery, binning, and QTL analysis.

Freshness

Last updated 2026-05-28 06:26:10; freshness should be verified.