Identification and Expression of the Target Gene SLC24A2 of oar-miR-377 and Its Novel SNPs Effects on Wool Traits in Sheep

文献类型： 外文期刊

第一作者： Zhou, Huaqian

作者： Zhou, Huaqian;Yang, Hua;Fan, Wenhua;Zhao, Zongsheng;Zhou, Huaqian;Yang, Hua;Fan, Wenhua;Yang, Hanyulu;Yu, Qian;Yang, Yonglin;Zhang, Wenzhe

作者机构：

关键词： oar-miR-377; SNP; Wool traits; Sheep

期刊名称：KAFKAS UNIVERSITESI VETERINER FAKULTESI DERGISI （ 影响因子：0.9； 五年影响因子：0.8 ）

ISSN： 1300-6045

年卷期： 2025 年 31 卷 1 期

页码：

收录情况： SCI

摘要： Hair follicle development is closely associated with wool traits. Current studies reveal the crucial role of microRNAs in regulating the specific gene expression by binding to target mRNA involution in hair follicle growth and development, thereby regulating the wool traits. Our previous miRNA sequencing showed that oar-miR-377 has special expression in secondary hair follicle development and SLC24A2 may be a new candidate target using bioinformatics analysis. In this study, the regulatory relationship of oarmiR-377 and its specific target gene SLC24A2 was determined in sheep fibroblasts by dual-luciferase reporter assay, RT-qPCR, and western blot. The variation of oar-miR-377 precursors was detected using PCR and Sanger sequencing, and the association between polymorphisms of oar-miR-377 and wool quality traits was analyzed in Chinese Merino. The result showed that SLC24A2 was a target gene of oar-miR-377. A SNP (276T>C) of oar-miR-377 upstream sequences was identified and extremely significant associated with the coefficient of variation of wool fiber diameter in Chinese Merino sheep (P<0.01). These results suggest that oar-miR-377 promotes secondary hair follicle development by downregulation of SLC24A2 gene expression, and its SNP might be a useful marker for wool quality.

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