Genome-wide association study identifies genomic regions associated with key reproductive traits in Korean Hanwoo cows

Background
Conducting genome-wide association studies (GWAS) for reproductive traits in Hanwoo cattle, including age at first calving (AFC), calving interval (CI), gestation length (GL), and number of artificial inseminations per conception (NAIPC), is of paramount significance. These analyses provided a thorough exploration of the genetic basis of these traits, facilitating the identification of key markers for targeted trait improvement. Breeders can optimize their selection strategies, leading to more efficient and sustainable breeding programs, by incorporating genetic insights. This impact extends beyond individual traits and contributes to the overall productivity and profitability of the Hanwoo beef cattle industry. Ultimately, GWAS is essential in ensuring the long-term genetic resilience and adaptability of Hanwoo cattle populations. The primary goal of this study was to identify significant single nucleotide polymorphisms (SNPs) or quantitative trait loci (QTLs) associated wit..., , , **Korean Hanwoo 50K SNP Data**

***Dataset Overview:***

This dataset contains the genomic data from the first-parity Korean Hanwoo cows, collected from nine commercial herds located in the Gyeongsanbuk-do province of South Korea. A total of 11,348 cows were included in this data, and each was genotyped using the Illumina Bovine 50K SNP chip.

***Files Included:***

* Plink PED File: This file contains the genotype information in a format recognizable by Plink, a widely used tool for whole-genome association analysis. Each row represents a single animal with its genotype data across the 53,866 SNPs.
* Plink MAP File: Accompanying the PED file, this MAP file provides detailed marker information for the 53,866 SNPs on the chip, including their specific locations on the bovine genome.

***Purpose of the Dataset:***

The primary purpose of making this dataset available is to contribute to the broader scientific understanding of genetic traits in Hanwoo cattle, particularly those traits ...