Fig. 2

Characterization of putative piRNAs. The four rows represent the different sampling time points 0 h, 24 h, 72 h and 120 h post amputation from top to bottom. a Share of reads with 5′ U (1 U) within the fraction of reads that did not match any other class of coding or non-coding RNA. b Z-scores for different 5′ overlaps of mapped sequence reads. c Ping-pong-matrices show the most frequent length combinations of two sRNA reads that form a ping-pong pair (10 nt 5′ overlap)