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Fig. 6. lg1 affects cell autonomy of the Wab1 phenotype. (A)
Cartoon illustrating spread of the Wab1 phenotype (wavy lines) into a
wab1+/ sector and spread of normal phenotype (no wavy lines)
from a sector into Wab1/wab1+ tissue. We propose that
lg1 may transmit both correct and incorrect positional signals
towards the margins of Wab1 leaves (red arrows). (B) In the absence
of lg1, the Wab1 phenotype is strictly cell-autonomous.