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Fig. 2. Clones involving fz. (A) Two fz– clones
in the pleura (marked with tricornered, which makes each cell form a
cluster of variously pointing hairs; genotype 2). Here and in most other
figures, anterior is up and clones are outlined in red. Note the reversal of
polarity (red arrows) for several rows of cells, behind the clones. (B) A
UAS.fz clone reverses in front (genotype 3). This clone, stained in
blue, consists of cells at the anterior limit of the P compartment.
Repolarisation includes the front part of the clone and extends well into the
A compartment (red arrow). Clones made with other drivers show similar
phenotypes (genotypes 4 and 5). Note that here and in other figures the
orientation of bristles is inconstant; this is an artefact caused by the need
to flatten the preparations when mounting. (C) A UAS.fz clone (marked
with pawn, which makes the hairs more tenuous and the bristles
stunted) in a fz– fly (genotype 6). The background
fz– territory has dishevelled hair polarity (compare
with the left edge of A to see the wild-type pattern), and the clone imposes
normal polarity for about one cell behind and reversed polarity for about one
cell in front (red arrows).
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