Abstract
Rice ragged stunt disease caused leads to severe loss of rice yield. Recently, rice ragged stunt virus (RRSV) were found to be increasingly common in rice-growing regions of China and Vietnam. RRSV may cause problem by interacting with microRNAs (miRNAs) of host cells and the mechanism is not clear yet. In this study we identified 11 miRNAs in response to RRSV infection and predicted their possible targets to viral RNA segments (S1-S10) through the bioinformatics analysis. Interestingly, we found that Osa-miR-168b might bind to both the CDS region and 3'UTR of S5 and S8 and target eEF-1A to inhibit the activity of host cells to facilitate RRSV replication. These results suggest that miRNAs may be a potential target for developing rice against RRSV infection.
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