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Methylation Levels in the Promoter Region of FHIT and PIAS1 Genes Associated with Mastitis Resistance in Xinjiang Brown Cattle

文献类型： 外文期刊

作者： Zhong, Liwei 1 ; Ma, Shengchao 1 ; Wang, Dan 1 ; Zhang, Menghua 1 ; Tian, Yuezhen 3 ; He, Junmin 4 ; Zhang, Xiaoxue 1 ; Xu, Lei 1 ; Wu, Cuiling 1 ; Dong, Mingming 1 ; Gou, Murong 1 ; Huang, Xixia 1 ; Tian, Kechuan 4 ;

作者机构： 1.Xinjiang Agr Univ, Coll Anim Sci, Urumqi 830091, Peoples R China

2.Xinjiang Acad Anim Sci, Qual Stand Inst Anim Husb, Urumqi 830011, Peoples R China

3.Xinjiang Acad Anim Sci, Inst Anim Sci, Key Lab Genet Breeding & Reprod Xinjiang Wool Shee, Urumqi 830011, Peoples R China

4.Shandong Acad Agr Sci, Inst Anim Sci & Vet Med, Jinan 250100, Peoples R China

关键词： Xinjiang brown cattle; mastitis resistance; GWAS; DNA methylation; candidate genes; FHIT and PIAS1 genes

期刊名称：GENES （ 影响因子：3.5； 五年影响因子：3.9 ）

ISSN：

年卷期： 2023 年 14 卷 6 期

页码：

收录情况： SCI

摘要： Mastitis causes serious economic losses in the dairy industry, but there are no effective treatments or preventive measures. In this study, the ZRANB3, PIAS1, ACTR3, LPCAT2, MGAT5, and SLC37A2 genes in Xinjiang brown cattle, which are associated with mastitis resistance, were identified using a GWAS. Pyrosequencing analysis showed that the promoter methylation levels of the FHIT and PIAS1 genes in the mastitis group were higher and lower, respectively, than those in the healthy group (65.97 & PLUSMN; 19.82% and 58.00 & PLUSMN; 23.52%). However, the methylation level of the PIAS1 gene promoter region in the mastitis group was lower than that in the healthy group (11.48 & PLUSMN; 4.12% and 12.17 & PLUSMN; 4.25%). Meanwhile, the methylation levels of CpG3, CpG5, CpG8, and CpG15 in the promoter region of the FHIT and PIAS1 genes in the mastitis group were significantly higher than those in the healthy group (p < 0.01), respectively. RT-qPCR showed that the expression levels of the FHIT and PIAS1 genes were significantly higher in the healthy group than those in the mastitis group (p < 0.01). Correlation analysis showed that the promoter methylation level of the FHIT gene was negatively correlated with its expression. Hence, increased methylation in the promoter of the FHIT gene reduces the mastitis resistance in Xinjiang brown cattle. Finally, this study provides a reference for the molecular-marker-assisted selection of mastitis resistance in dairy cattle.

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