qPCR of cultured 12.5 dpc male UGRs.

<p>Real-time PCR analysis of <i>Pecam1</i> (A), <i>Fgf9</i> (B), <i>Pdgf-b</i> (C), and <i>Vegfa</i> (D) in control (light gray columns) and DKK1 treated samples (dark gray columns); the number depicted above the graphs (when reported) means the fold change of transcript expression in treated samples vs. control samples. Error bars indicate s.e.m. (*P < 0.05; ** P < 0.01).