The dynamics of piRNA expression in Blattella germanica ovaries
This study characterizes the dynamic expression of piRNAs in *Blattella germanica* ovaries across seven developmental stages, revealing that while piRNA diversity decreases during vitellogenesis due to the enrichment of specific transcripts, their coordinated fluctuations suggest a dual regulatory role in modulating both transposable elements and mRNAs to support follicle maturation.