Yellow Lupin Flowering Time QTL Mapping Data from Recombinant Inbred Lines

A recombinant inbred line (RIL) population of 1,448 genotyping loci was phenotyped for flowering time across three spring seasons (2022-2024) and a winter season (2023/4). The dataset, authored by Ishani Dogra and shared on figshare, contains quantitative trait locus (QTL) mapping results for vernalization and photoperiod response in yellow lupin (Lupinus luteus L.). It identifies a major QTL on chromosome YL-16 explaining up to 34% of phenotypic variance and co-localizing with the LlutFTc1 gene.

Use Cases

• Validate the major QTL on chromosome YL-16 for early flowering based on the described 2,227 bp indel marker in the LlutFTc1 promoter.
• Compare the effects of photoperiod on flowering time based on phenotypic variance explained under long-day (up to 5%) and short-day (up to 9%) conditions.
• Investigate candidate genes for minor QTLs, such as EAF1B-like and CIB2-like genes on YL-04 and bHLH93-like on YL-14.
• Assess genetic map collinearity and fragmentation using the described linkage map of 63 groups versus 26 chromosomes.

Strengths

• Genetic map comprises 1,448 loci anchoring all yellow lupin pseudochromosomes.
• Phenotyping spans multiple seasons and photoperiods, with flowering time differences reaching ~39 days in long days and ~68 days in short days.
• Major QTL is significant across all years and both photoperiods, explaining up to 34% of phenotypic variance.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The genetic map is moderately fragmented into 63 linkage groups versus 26 chromosomes.

Provenance

Source

figshare, author Ishani Dogra.

Collection Method

Data generated from phenotyping a recombinant inbred line (RIL) population under controlled greenhouse conditions and DArT-seq genotyping.

Time Range

Phenotyping conducted across spring seasons 2022-2024 and winter season 2023/4.

Freshness

Last updated 2026-04-23 05:36:13; freshness should be verified.