Fig. 2
From: piRNA-like small RNAs mark extended 3’UTRs present in germ and somatic cells
piRNA clusters at 3’ UTRs in adult testis. a Length distribution of 3’ UTR piRNA clusters. Blue bars denote clusters of piRNAs aligning to annotated 3’UTRs (RefSeq). Orange bars denote clusters of piRNAs aligning to regions immediately 3’ of annotated 3’UTRs, which are here termed extended 3’ UTRs or xUTRs. b Length distribution of piRNAs aligning to 3’ UTR piRNA clusters (both annotated and extended)