<b>Revealing genes related </b><b>teat number traits via genetic variation in </b><b>Yorkshire pigs based on whole-genome sequencing</b>

Teat number is one of the most important indicators to evaluate the lactationperformance 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 detectedSingle Nucleotide Ploymorphism(SNP), Insertion-Deletion(InDel) andStructural variant(SV) by high-coverage 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.