Images provide by Claire Anderson. The complete cDNA template used to synthesize the probe was obtained from NCBI acc. # (NM_204510.1 ) using information provided in the publication as described in Rehimi et al. 2008; Related paper: Anderson C, Khan MAF, Wong F, Solovieva T, Oliveira NMM, Baldock RA, Tickle C, Burt DW, Stern CD. A strategy to discover new organizers identifies a putative heart organizer. Nat Commun. 2016 7:12656.