Turing-Hopf instability in biochemical reaction networks arising from pairs of subnetworks

► We study Turing-Hopf instability in reaction-diffusion models of bio chemical reactions. Non-mass action kinetics is used and only one species is diffusing. ► A graph-theoretic condition for potential Turing-Hopf instability is obtained. ► A double-cycle Goodwin model is used as an illustration of the method.