Computer Simulation of Cellular Patterning Within the Drosophila Pupal Eye
Figure 5
Inhibiting cell death impeded 2° and 3° formation in vivo.
(A–D) Examples of ommatidia from GMR-Gal4/UAS-Diap1 retinae. For cell counts all IPCs lying within the hexagonal outline as drawn were counted; cells partly within the hexagon were counted as a half-cell. 3°s were defined as contacting three 1°s (colored orange); a correctly specified 2° locus was defined as one occupied by only one cell; examples of end-to-end 2°-like cells are labeled with •. Total cell count for each ommatidium is indicated at its center. Our analysis included only ommatidia surrounded by three correctly positioned bristle groups. Bars represent 10 µm. (E) Graph showing the decrease in 2° (plotted in green) and 3° (black) cell number as IPC number increased. The total number of ommatidia analyzed (N) per data point plotted is indicated below the y-axis.