TABLE 1.

Summary of Tbx2 Subfamily Gene Expression in the Embryonic and Postnatal, Pre-Pubertal Internal Reproductive System^a

			E13.5
					P0	P14	P16
Gene	E9.5	E11.5	XY	XX	XY	XY	XX
Tbx2	we	we	Testis interstitiumb, we, mm	Ovary, we	Testis interstitiumb, epididymis	Epididymis, seminal vesicle	Oviduct
Tbx3	we	we, wm	we, wm, mm	we, wm, mm	Epididymis	Epididymis, vas deferens, seminal vesicle	Uterus
Tbx4	Absent	Gonad	gc in testis cords	gc in ovary	Absent	Absent	Oocytes

^agc, germ cells; we, Wolffian duct epithelium; wm, Wolffian duct mesenchyme; mm, Müllerian duct mesenchyme.

^bMesenchymal compartment.

^cEpithelial compartment.