Niche cell positioning drives functional heterogeneity in the Drosophila testis stem cell niche.
Adult stem cells are critical for tissue homeostasis. They reside in dynamic, supportive microenvironments termed niches, which are generated by specialized niche cells. The adult Drosophila melanogaster testis contains a single niche generated by a small cluster of quiescent somatic niche cells called hub cells. Altho...