Figure 6.
ihog and boi are required to maintain the affinity boundary between anterior and posterior compartments. All panels show third instar wing imaginal discs with anterior to the left. (A-B''') ihogDC1/DC1 clones (dotted line) in a boiC1/- mutant. (A-A''') Low magnification view. A clone of anterior origin (labelled a in (A')) is identified by the expression of basal levels of Ci155. A clone of posterior origin (labelled p in (A')) does not express Ci155. (B-B''') Higher magnification view of boxed area in (A'''). The anterior-derived double mutant clone (dotted line) is found in posterior territory. The adjacent twin-spot is marked by the high level of GFP staining (labelled with the plus sign in (B,B''')). The white dashed line in (A''',B''') marks the normal position of the anterior-posterior boundary.