Ancestral regulatory circuits governing ectoderm patterning downstream of Nodal and BMP2/4 revealed by gene regulatory network analysis in an echinoderm. oleh Alexandra Saudemont, Emmanuel Haillot, Flavien Mekpoh, Nathalie Bessodes, Magali Quirin, François Lapraz, Véronique Duboc, Eric Röttinger, Ryan Range, Arnaud Oisel, Lydia Besnardeau, Patrick Wincker, Thierry Lepage