Association Between Polymorphisms in and Litter Size Traits in Xiangsu Pigs

Overview

Journal Front Vet Sci

Specialty Veterinary Medicine

Date 2024 Mar 25

PMID 38523712

Authors

Jiajin Huang

Yong Ruan

Meimei Xiao

Lingang Dai

Chuanmei Jiang

Jifeng Li

Jiali Xu

Xiang Chen

Houqiang Xu

Affiliations

Soon will be listed here.

Abstract

The newborn ovary homeobox gene () regulates ovarian and early oocyte development, and thus plays an essential role in reproduction. In this study, the mRNA expression level and single nucleotide polymorphism (SNP) of in various tissues of Xiangsu pigs were studied to explore the relationship between its polymorphism and litter size traits. Also, bioinformatics was used to evaluate the effects of missense substitutions on protein structure and function. The results revealed that is preferentially expressed in the ovary. Six mutations were detected in the sequence, including g.1624 T>C, g.1858 G>A, g.2770 G>A, g.2821 A>G, g.5659 A>G, and g.6025 T>A, of which g.1858 G>A was a missense mutation. However, only g.1858 G>A, g.5659 A>G, and g.6025 T>A were significantly associated with litter size traits ( < 0.05). Further prediction of the effect of the missense mutation g.1858 G>A on protein function revealed that p.V82M is a non-conservative mutation that significantly reduces protein stability and thus alters protein function. Overall, these findings suggest that polymorphism is closely related to the litter size of Xiangsu pigs, which may provide new insights into pig breeding.

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