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Fig. 7. Vascular and steroidogenic phenotype observed in the Sf1:Wnt4 transgenic XY
gonads. (A) Coelomic blood vessel pattern is affected in Sf1:Wnt4 transgenic
testis. Testis from transgenic (a-c) and non-transgenic (NT) (d) 13.5 dpc
embryos were stained with an antibody to Pecam. (B) Leydig cell
differentiation occurs in Sf1:Wnt4 transgenic testis. Whole-mount in situ
hybridisation for Cyp11a1 expression on 13.5 dpc XY gonads from a
Sf1:Wnt4 transgenic embryo (left) and a non-transgenic embryo (NT) (right).
The transgenic gonads were derived from different integration events
(1-4).