Receptor specificity of the fibroblast growth factor family.
(Ornitz et al. 1996)
. In the XY gonad at 11.5 dpc, FGFR2 was found in the nuclei of scattered cells in the interior of the gonad. This nuclear localization of FGFR2 was not observed in XX gonads. FGF9 induces proliferation and nuclear localization of FGFR2 in Sertoli precursors during male sex determination (Schmahl et al. 2004)