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. Author manuscript; available in PMC: 2010 Aug 1.
Published in final edited form as: Dev Biol. 2009 May 9;332(1):104–115. doi: 10.1016/j.ydbio.2009.05.541

Figure 4. Placental layer-specific markers are unchanged in mutant placentas.

Figure 4

At E13.5 (A) and E11.5 (B) wild-type and mutant placentas expressed equivalent levels of placental lactogen-1 (Pl-1, trophoblast giant cell layer marker), Flt-1 (spongiotrophoblast layer marker), and Esx-1(labyrinth layer marker), as assessed by quantitative real-time PCR. Gene expression levels are normalized to ubiquitin expression levels. Standard deviation is represented by the error bars.