Abstract
CircRNAs are involved in the regulation of various cellular and biological processes, but none of the studies have focused on hair follicle in sheep. In this study, the expression profile of circRNAs between small waves (SM) and straight wool (ST) groups was investigated using RNA-Seq. The results showed that a total of 5,527 circRNAs were identified and 114 of them were differentially expressed between two groups. Enrichment analysis revealed that the host genes with DE circRNAs were mainly enriched in TGF-beta pathway, Notch pathway. Miranda software was used to found that 129 miRNAs might be binding to 114 DE circRNAs, including miR-10a, miR-143, miR-let-7a, miR-199a-3p, miR-200a, which also had important influence on hair follicle morphogenesis. Furthermore, the coding potential of circRNAs was predicted, and 11 circRNAs were simultaneously identified with coding potential. In summary, circRNAs have important effects on hair follicle growth and development, and these results will provide a basis for molecular mechanism of pattern formation.
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