Characterization of gene and repetitive elements-derived piRNAs. a Ratios of piRNAs with uridine at their 5′ ends (upper panel) and piRNAs with adenosine at position 10 (lower panel) in various developmental stage libraries. b Ratios and abundances (lower panel) of in various developmental stage libraries. b Strand bias in various developmental stage libraries. Abundance and percentage of CDSs, 5′ UTR- and 3′ UTR-derived piRNAs. c Ping-pong pair analysis of gene and repetitive elements-derived piRNAs. The length of overlap is shown on the horizontal axes. Indicated above each axis is the number of possible overlapping pairs of small RNAs with a specified overlap size. Indicated below each axis is the relative frequency of the 5′ base identity for overlapping sequences. The colour code for bases is indicated in the centre box. (TIF 4512 kb
