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Fig. 2 | BMC Evolutionary Biology

Fig. 2

From: The evolutionary arms race between transposable elements and piRNAs in Drosophila melanogaster

Fig. 2

Characteristics of small RNAs sequenced in 10 GDL strains. a Length distribution of small RNAs that are mapped to the reference genome and TE sequences, the known miRNAs, tRNAs, rRNAs, ncRNAs and miscRNAs were removed. b Barplots of the fractions of the first nucleotide of piRNAs in 10 GDL strains. c Pie chart of the genomic locations for all mapped piRNAs. d Pie chart of the genomic locations for the uniquely mapped piRNAs. e The ping-pong signature generated between the sense and antisense piRNA reads. The x-axis shows the nucleotides that are overlapping between a sense and antisense piRNA. The y-axis is the Z-score of the overlapping length among all the possible overlapping combinations. f Heatmap showing the RPKM values of weighted piRNAs on TEs in 10 GDL strains. Only the top 40 TEs with the highest RPKMs are shown. g Heatmap showing the RPKM values of weighted piRNAs on piRNA clusters in 10 GDL strains. Only the top 40 piRNA clusters with the highest RPKMs are shown

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