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Fig. 5. opa LOF clones fail to express
dpps-hc-lacZ. Homozygous opa mutant clones
were generated by using the FLP/FRT system. dpps-hc-lacZ
construct, SH53, expression (in red) in non-recombination control disc
(A), and in opa mutant tissue in single section images
(B-E). The clonal areas are outlined in white in the merged panels
(B-D) and are marked by absence of green fluorescence, which can be seen in
the B'-E' green-only channel. The box in E indicates dpp
reporter expression missing in a small clone, and its enlargement is shown in
the white inset box in E and E'. The positions of clones relative to the
entire lateral dpps-hc-lacZ expression pattern is shown by
labeled brackets in A.