Plot signals of the candidate targets of miRNAs predicted by degradome sequencing. Targets of conserved miRNAs (miR160, miR171, miR172 and miR398) and tobacco-specific miRNAs (Nta-miR22 and Nta-miR32) are shown. The X-axis displays the nucleotide position of the target genes. The Y-axis indicates the abundance of reads converted into transcripts per 10 million (TP10M). Each circle represents a degradome fragment mapped to the target gene and the circle indicated by the red arrow represents the expected miRNA cleavage product.