miRNA-like RNAs from the miR822 precursor. (a) The precursor fold-back structure and sequencing reads mapped to miR822.1 (that is, miR822) and individual miRNA-like RNAs. (b) Distribution of sequencing reads along the precursor. For clarity, miR822.5* is indicated though the number of reads mapped to it is below the cutoff threshold of 5. (c) Expression of miR822.1 and miR822.2 in various Arabidopsis mutants of small RNA pathways. (d) Expression of miR822.2, miR822.1, miR822.3, miR822.1* and miR822.3* under the challenge of three Pst strains (hrcC, avrRpt2 and EV) and in a mock control at 6 and 14 hpi.