REAGENT or RESOURCE	SOURCE	IDENTIFIER
Deposited data
OSC piRNA	(Genzor et al., 2021)	GSE156058
Drosophila ovary piRNA	(Hayashi et al., 2016)	GSE83698
Mouse testis piRNA	(Gainetdinov et al., 2018)	PRJNA421205
Code describing all the main analyses throughout the paper	This study	https://github.com/HaaseLab/piRNA_ThreePrimeEnds
Software and algorithms
R	(Team, 2021a)	https://www.R-project.org/
data.table	(Matt Dowle, 2021)	https://r-datatable.com
Dplyr	(Hadley Wickham et al., 2022)	https://CRAN.R-project.org/package=dplyr
ggplot2	(Wickham, 2016)	https://ggplot2.tidyverse.org
ggpubr	(Kassambara, 2020)	https://CRAN.R-project.org/package=ggpubr
GenomicRanges	(Lawrence et al., 2013)	https://bioconductor.org
ggseqlogo	(Wagih, 2017)	https://CRAN.R-project.org/package=ggseqlogo
BSgenome.Dmelanogaster.UCSC.dm6	(Team, 2014)	https://bioconductor.org
BSgenome.Mmusculus.UCSC.mm10	(Team, 2021b)	https://bioconductor.org
stringr	(Wickham, 2019)	https://CRAN.R-project.org/package=stringr
parallel	(Team, 2021a)	https://www.R-project.org/