Fig 7. ROS, the metabolic signal for progenitor differentiation is monitored by the Relish.

(A-A’) ROS level visualized by DHE shows high DHE level in the primary lobe progenitors of the late third instar larval lymph gland. (B-E) ROS level visualized by gstD-GFP at different developmental time points 24 hrs (B), 48 hrs (C), 72 hrs (D), 96 hrs (E). (E-E”) The bulk of gstD-GFP expressing MZ progenitors are enriched in Rel (F) Schematic representation of our findings depicting how the presence of Rel in the ROS enriched myeloid-like progenitors prevents them from exhaustion.