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. 2017 Jul 14;175(1):457–472. doi: 10.1104/pp.17.00787

Figure 7.

Figure 7.

Schematic model for antisense RNA-mediated degradation of sense mRNAs under abiotic stress. A, The hypothetical model is constructed from the current study and previous reports. Antisense RNAs are generated from uncapped sense RNAs by RDRs. The antisense RNAs and sense RNAs form double-stranded RNAs that function in the degradation of sense mRNAs. DCPs and XRNs are involved in this mechanism. B, The model of RNA regulation by RDR1/2/6-dependent antisense RNAs. RNA regulation is robustly controlled by transcription during the increasing phase prior to static equivalence and/or a feedback mechanism. RDR1/2/6-dependent antisense RNAs reinforce the down-regulation of drought stress-increased mRNAs after their transcriptions are strongly decreased during the recovery stage.