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Fig. 5. Cell death in the L-mutant eye is due to ectopic induction of
Wg. (A-A''') The LOF clones of L on the ventral eye
margin (A, arrow), posterior to MF and marked by the loss of GFP reporter
(A', arrow), show ectopic induction of Drice (A'', arrow),
coincident with the ectopic induction of Wg (A''', arrow).
(B,C) LOF clones of L, generated by the MARCM approach, are
positively marked by the GFP reporter and accompanied by the overexpression of
SggS9A (B) or dTCFDN (C) to abolish Wg signaling in the
eye. Notice that LOF clones of L in the ventral eye can no longer
eliminate eye pattern (arrowheads).