Natural and chemical biology of cardiogenesis in ESCs/iPSCs. A schematic representation of the steps that are required to generate cardiomyocytes from ESCs or iPSCs involving: (1) mesoderm induction, (2) mesoderm patterning, (3) formation of cardiogenic mesoderm, and (4) formation of cardiomyocytes. Biological inducers are mapped to the temporal steps in green (activation of the pathway), red (inhibition of the pathway), and blue (maintenance of a progenitor). Chemical inducers are mapped in orange (unpublished work and published compounds)