(B’) labeling on stage 2 virtual model of an equivalent region to that experimentally labeled in (A) (left) and the resulting labeled region in stage 8 virtual model (right). (A) Clusters of pseudo-cells were labeled at regular spacing along the D2 line of the stage 2 CC model. (B) Contiguous segments of pseudo-cells were labeled at regular spacing along the D1 line of the stage 2 CC model. This deformation pattern correlates with the localized fan-like distribution of the descendant of D2 (Figure 5A, A’, indicated by asterisks in Figure 6). These observations therefore match the deformations observed for labels in D1 and D2 (Figure 5).