What question did this study set out to answer?

The study aims to identify SNPs associated with reproductive traits in pigs and evaluate the impact of sample size and marker density on GWAS performance.

February 14, 2026AnimalsOpen Access

Genome Imputation for Genome-Wide Association Study of Reproductive Traits in Chinese Duroc, Landrace, and Yorkshire Pigs: Strategy and Validation

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Authors

JZJieke ZhouShanghai Academy of Agricultural Sciences YFYang FuShanghai Academy of Agricultural Sciences YZYingying ZhangShanghai Academy of Agricultural Sciences

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Implication

Identifies SNPs linked to reproductive traits in pigs, highlighting the importance of sample size for GWAS outcomes.

Key Points

The study aims to identify SNPs associated with reproductive traits in pigs and evaluate the impact of sample size and marker density on GWAS performance.
Collected and analyzed sequencing datasets from Yorkshire, Landrace, and Duroc pigs
Used SNP chip and genotyping-by-targeted sequencing for genotyping
Applied an imputation strategy on datasets before validation
Conducted a genome-wide association study to determine significant SNPs
Compared imputation results across differing sample sizes and marker densities
Identified 73 significant SNPs associated with seven reproductive traits from imputed Chip data
Found 94 SNPs associated with three traits from imputed GBTS data
Validated 7 SNPs linked to number born alive, number born healthy, and gestation length
Determined that sample size is more critical than marker density for successful imputation
Identified LOXL2 and PTPRD as high-confidence candidate genes affecting gestation length and number born alive, respectively

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/699011602ccff479cfe57f43 https://doi.org/10.3390/ani16040583

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Genome Imputation for Genome-Wide Association Study of Reproductive Traits in Chinese Duroc, Landrace, and Yorkshire Pigs: Strategy and Validation

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Key Points

Cite This Study

Genome Imputation for Genome-Wide Association Study of Reproductive Traits in Chinese Duroc, Landrace, and Yorkshire Pigs: Strategy and Validation

Discussion

Member takes

Implication

Key Points

Cite This Study

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