oar-mir-200a: Oar-mir-200a is a miRNA that has been identified in various tissues, including the hypothalamus and distal pituitary [PMC9222358]. It has been shown that miR-200a-3p, a variant of oar-mir-200a, plays a significant role in chickens [PMC9222358]. In the hypothalamic and uterine libraries, oar-mir-200a was found to be one of the common differentially expressed miRNAs [PMC8131964]. It was also observed that oar-mir-200a targets several genes in the VMV reference genome sequence [PMC6339376]. Furthermore, oar-mir-200a was found to be upregulated in lesions-seronegative comparison and could actively target the viral gag gene [PMC6339376]. In addition to its role in uterine libraries, oar-mir-200a was also identified as a common differentially expressed miRNA in ovary libraries [PMC8161056]. Oar-mir-200a belongs to the miR-200 family and is associated with epithelial–mesenchymal transition and seminiferous epithelium development [PMC6385976]. In a comparison between PGA libraries, it was observed that oar-mir-200a was downregulated [PMC7142988]. Finally, qRT-PCR verification confirmed the expression patterns of oar-miR16b, oar-mir-200a, and oar-miR432 in various tissues [PMC8300399].