Maize RIL Population SNP Genotyping Data for Grain Protein QTL Mapping

379 F7:8 recombinant inbred lines and their parental lines were genotyped using a 20K maize GBTS platform, resulting in 23,758 high-quality SNP markers. The dataset supports linkage map construction and quantitative trait locus mapping for grain protein content, as described in an associated manuscript. It was authored by Meijing Zhang and last updated on June 2, 2026.

Use Cases

• Constructing a high-density genetic linkage map based on 5,678 bin markers derived from filtered SNPs.
• Mapping quantitative trait loci for grain protein content using genotype data from a population of 379 recombinant inbred lines.
• Analyzing SNP marker segregation and parental polymorphism using the original dataset of 148,055 SNPs.
• Studying genetic recombination patterns in maize using filtered VCF files aligned to the B73 RefGen_v4 reference genome.

Strengths

• Includes genotype data for a population of 379 recombinant inbred lines and two parental lines.
• Provides 23,758 high-quality SNP markers after stringent filtering based on missing data, heterozygosity, and minor allele frequency.
• Contains both filtered VCF files and the original genotype file with 148,055 SNPs for comparison.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data reflects a specific experimental population (S951 × L027) and a targeted genotyping platform, which may limit generalizability.

Provenance

Source

Genomic DNA was extracted from leaves and genotyped by MolBreeding Biotechnology Co., Ltd. (Shijiazhuang, China).

Collection Method

Genotyping-by-target sequencing (GBTS) using a 20K maize platform, with SNP filtering and bin marker construction.

Freshness

Last updated 2026-06-02 11:55:19; freshness should be verified.

Geography

The RIL population was advanced at the Liuhe Experimental Station, Jiangsu Academy of Agricultural Sciences, Nanjing, China.