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MicroRNA exerts an important regulatory role in almost all the biological process, including hair follicle development in Liaoning Cashmere goat. In order to improve the Cashmere performance of goat, the regulatory role of microRNA in hair follicle cycle has drawn hotspot attention. However, the molecular mechanisms of miRNA-1-3p involved in hair follicle development are poorly understood. In this study, we found that miRNA-1-3p was less expressed in anagen stage of hair follicle cycle of Cashmere goat than that in telogen stage by using RT-qPCR and immunoblotting analysis, in contrast to the expression pattern of FGF14. The Dual-Luciferase reporter assay was employed to verify the relationship between miRNA-1-3p and FGF14. The results showed that miRNA-1-3p specifically binds to the 3′UTR of FGF14 mRNA, and FGF14 is the target gene of miR-1-3p. In conclusion, this study shows that miRNA-1-3p may regulate hair follicle development in Liaoning Cashmere goats by targeting FGF14.

Expression of miRNA-1-3p and its target gene in hair follicle cycle development of Liaoning Cashmere goat