osa-miR166k-3p: Osa-mir166k-3p is a microRNA that belongs to the miR166 family and is involved in the regulation of various biological processes in rice. It targets LOC_Os03g43930, a START domain containing protein, which is a putative HD-ZIP transcription factor involved in response to abiotic stress and abscisic acid [PMC6042804]. In a study comparing miRNA expression under bleomycin treatment, osa-mir166k-3p was found to be down-regulated [PMC8472271]. Additionally, osa-mir166k-3p was significantly downregulated in response to chilling stress in rice [PMC9002458]. It was observed that osa-mir166k-3p targets four members of the OsHDZIP subfamily III [PMC9405480]. Furthermore, osa-mir166k-3p and sbi-miR166a_R+1_1ss1TG were found to target four common HD-ZIP transcription factors [PMC4448008]. These findings suggest that osa-mir166k-3p plays a regulatory role in response to various stresses and may have different expression patterns and roles depending on the specific stress condition.