Pangenesis is the proposal that ordinary and dark matter are created together and therefore intimately related. After setting out the symmetry structure that forms the basis of the proposal, a specific realisation using the Affleck-Dine mechanism shall be presented. The universe is conceived to have total baryon number equal to zero, with the baryon asymmetry carried by ordinary matter cancelled by a corresponding asymmetry carried by dark matter. The generic predictions of this class of theories are GeV-scale dark matter and supersymmetry, with the strong possibility also of a Z' that decays to both ordinary and dark matter.