560 Large White sows whole genome sequencing

Teat number is one of the most important indicators to evaluate the lactation performance of sows, and increasing the teat number has become an important method to improve the economic efficiency of farms. Therefore, it is particularly important to deeply analyze the genetic mechanism of teat number traits in pigs. In this study, we detected Single Nucleotide Ploymorphism(SNP), Insertion-Deletion(InDel) and Structural variant(SV) by whole-genome resequencing data, and selected teat number at birth and functional teat number as two types of teat number traits for genome-wide association study(GWAS) to reveal candidate genes associated with pig teat number traits.