image: piRNA biogenesis pathway in the Drosophila germline. The Drosophila ovary has 16–20 ovarioles containing 14 different developmental stages of egg chambers. The piRNA precursors transcribed in ...
HP1a functions predominantly to support piRNA biogenesis. HP1a represses splicing of piRNA precursor transcripts for successful processing into mature piRNAs. Disclaimer: AAAS and EurekAlert! are not ...