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Fig. 5. Abd-B m function in the genitalia and the female genital
disc. (A) An Abd-BM5 mutant clone in the female
right eighth hemi-tergite, marked with yellow, is converted into an
anterior tergite (arrow). Compare with the left, wild-type, hemi-tergite
(arrowhead). (B) Similar mutant clone showing transformation of the
genitalia into a sternite (arrow). S7, seventh sternite. (C)
Abd-BM3 clone, marked with yellow, showing
transformation of the male A8 tergite (normally very small) into an anterior
one (arrow). T7, seventh tergite; g, genitalia. (D-F)
Abd-BM5 clones in the A8 of the female disc, marked by the
absence of the lacZ marker (green, D), do not activate Dll
(red, E; arrowheads in E and H mark the wild-type Dll expression). a,
analia. The merged image is shown in F. (G-L)
abd-AM1 mutant clones in the female A8, marked by the
absence of the ß-galactosidase marker (G,J, green), do not eliminate
Dll (H, red) or Abd-B (K, red) expression. Merged images are
shown in I and L. (M-O) Abd-BM5 clones in the A8 of
the female genital disc, marked by the absence of the lacZ marker (in
green in M), do not change abd-A expression (red, N). A merged image
is shown in O. (P-R) Abd-BD18 mutant clones in the
A8 segment, marked by the absence of the ß-galactosidase marker (blue,
P,R; clones are outlined), eliminate abd-A expression, detected by an
anti-abd-A antibody (green, Q,R), and activate Dll protein expression (red,
P,R). (S) Abd-BD18 abd-A+ clones, marked
with GFP (in green), eliminate Abd-B (blue) and activate Dll
(red) expression. The boxed clone is shown in detail in T-W. (X)
Similar clones induced in the leg disc do not eliminate Dll, as shown
by the co-expression of the GFP marker (green) and Dll (red), giving
a yellow color (arrowheads). (Y) dpp-Gal4/UAS-Dll
female disc showing elimination of abd-A expression in the
dpp domain (arrowheads).
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