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. Author manuscript; available in PMC: 2014 Jun 1.
Published in final edited form as: Dev Dyn. 2013 Apr 29;242(6):699–708. doi: 10.1002/dvdy.23967

Figure 1. Snai1 is highly expressed during avian epicardial development.

Figure 1

Immunohistochemistry was used to detect Snai1 expression in the proepicardium (PE) (arrows) at HH St. 16 (A), and in the epicardial cell layer (Epi) covering the myocardium (arrows) in addition to cells within the sub-epicardial space (arrowheads) at HH St. 31 (B). (C) By HH St. 40, Snai1 expression has decreased but levels are detectable in the epicardium. A, atria; V, ventricle; LV, left ventricle.