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Fig. 7. Distribution of androgen receptor in Fgfr2-IIIb-/-
genitalia. Immunolocalization of androgen receptor (AR) in wild-type (A) and
Fgfr2-IIIb-/- (B) genitalia of male embryos at E16.5. (A)
AR is detected in the preputial mesenchyme (p), corpus cavernosum (cc) and
urethra (u) of wild-type mouse. (B) Distribution of AR in
Fgfr2-IIIb-/- mutant genitalia is similar to that seen in
wild type (compare A with B). AR is present in urethral region (u) of mutant
phallus, even though epithelial organization has been lost. Insets show
sections taken anterior and proximal to the external genitalia, within the
body wall, and reveal the presence of AR in the anterior urethra of wild-type
(A) and Fgfr2-IIIb-/- (B) mice.