Two examples of lncRNAs that could act as piRNA precursors. (A) LINC00837; (B) LINC01015. The genomic location of the locus, piRNA mapping density, and ENCODE gene annotation are shown. piRNAs mapped to the sense and antisense strand of the reference genome are shown in brown and blue, respectively. For gene annotation, exonic regions are shown as solid green boxes, while non-exonic regions are shown as thin lines, with arrows indicating the direction of the gene.