osa-miR166j-5p: Osa-mir166j-5p is a microRNA that has been found to be differentially expressed in rice upon R. solani infection [PMC9189367]. In various studies, osa-mir166j-5p has been shown to be downregulated in response to chilling stress [PMC9002458], R. solani infection [PMC7662745], and different strains of R. solani [PMC7662745]. It is a member of the miR166 family, along with osa-miR166h-3p, osa-miR166g-3p, osa-miR166k-3p, and osa-miR166l-3p [PMC9002458]. Osa-mir166j-5p has been found to have different expression patterns and roles compared to other miRNAs in the same family [PMC9002458]. Osa-mir166j-5p has also been shown to be differentially regulated at different time points during R. solani infection, with downregulation at early time points and upregulation at later time points [PMC7662745]. The target gene of osa-mir166j-5p, a subtilisin-like protease gene, showed upregulation in one rice cultivar but downregulation in others upon R. solani infection [PMC7662745]. Overall, these findings suggest that osa-mir166j-5p plays a role in response to chilling stress and R. solani infection in rice.