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. Author manuscript; available in PMC: 2009 May 19.
Published in final edited form as: Sex Dev. 2008 Sep 3;2(3):128–133. doi: 10.1159/000143430

Fig. 1.

Fig. 1

αSma-EYFP labels a subset of interstitial cells including peritubular myoid cells. A Optical confocal Z-sections of αSma-EYFP testes. EYFP is expressed throughout the interstitium but never within testis cords. At early (E12.5) and late (E15.5) stages of testis development, EYFP is enriched in cells immediately adjacent to the laminin (red) rich extracellular matrix (arrowheads). A’ Magnification of a small portion of A , as outlined by the white box, shows αSma-EYFP (green) expressed in presumptive peritubular cells immediately adjacent to the ECM (red). B High magnification images of αSma-EYFP gonads demonstrate that expression is excluded from PECAM-1 (red) positive endothelial cells (arrowheads).