Development of a new grading system to assess the foster performance of lactating sows

Trost, Lea-Sophie; Zeidler, S.; Ammer, S.; Rosengart, Stephan; Wendt, Michael; Visscher, Christian; Tetens, Jens; Traulsen, Imke

doi:10.1016/j.animal.2022.100655

animal

2022

DOI: 10.1016/j.animal.2022.100655

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Development of a new grading system to assess the foster performance of lactating sows

Lea-Sophie Trost

S. Zeidler

S. Ammer

et al.

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2024

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Cited by 1 publication

References 26 publications

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

Wei,

Sun,

Pan

et al. 2024

BMC Genomics

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Background 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 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. Results In this study, we used whole genome resequencing data from 560 Yorkshire sows to detect SNPs, InDels and SVs, and performed GWAS for the traits of born teat number and functional teat number, and detected a total of 85 significant variants and screened 214 candidate genes, including HEG1, XYLT1, SULF1, MUC13, VRTN, RAP1A and NPVF. Among them, HEG1 and XYLT1 were the new candidate genes in this study. The co-screening and population validation of multiple traits suggested that HEG1 may have a critical effect on the born teat number. Conclusion Our study shows that more candidate genes associated with pig teat number traits can be identified by GWAS with different variant types. Through large population validation, we found that HEG1 may be a new key candidate gene affecting pig teat number traits. In conclusion, the results of this study provide new information for exploring the genetic mechanisms affecting pig teat number traits and genetic improvement of pigs.

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

Wei,

Sun,

Pan

et al. 2024

BMC Genomics

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Development of a new grading system to assess the foster performance of lactating sows

Cited by 1 publication

References 26 publications

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

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

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