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Fig. 3. Expression and requirement of abd-A in the female internal
genitalia. (A) Third instar female genital disc, stained with an
anti-abd-A antibody. (B) Similar disc of an abd-A-lacZ larva
stained with X-Gal. The pattern of expression reproduces that of the
anti-abd-A antibody. (C,D) X-Gal staining of internal female genitalia
from two late pupae. The seminal receptacle (sr), spermathecae (s), uterus (u)
and oviducts (ov) are stained, whereas parovaria (p) are not. o, ovaries.
(E) Female genital disc of an abd-Aiab3-277/DfR59
female larva stained with anti-abd-A antibody, showing a reduction in
abd-A expression compared with wild type. (F) Female internal
genitalia of an abd-Aiab3-277/Df 109 female. See that most
elements of the internal genitalia and the ovaries have disappeared (compare
with C). vp, vaginal plates (part of the external genitalia).