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Updated: Jan 23, 2026

Author Spotlight: PGC Cryopreservation – An Alternative Approach Towards Long-Term Preservation of Drosophila Strains
Published on: December 1, 2023
Germ granules in Drosophila
1HHMI, Skirball Institute of Biomolecular Medicine, Department of Cell Biology, NYU School of Medicine, New York, New York.
Abstract:
Germ granules are hallmarks of all germ cells. Early ultrastructural studies in Drosophila first described these membraneless granules in the oocyte and early embryo as filled with amorphous to fibrillar material mixed with RNA. Genetic studies identified key protein components and specific mRNAs that regulate germ cell-specific functions. More recently these ultrastructural studies have been complemented by biophysical analysis describing germ granules as phase-transitioned condensates. In this review, we provide an overview that connects the composition of germ granules with their function in controlling germ cell specification, formation and migration, and illuminate these mysterious condensates as the gatekeepers of the next generation.
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