Fig. 5
From: Cycles of external dependency drive evolution of avian carotenoid networks
Internalization of control over external inputs enables accelerated occupancy of enzymatic network and faster diversification of carotenoid pathways. Relative contribution of a change in a number of source controls, Ns, and b number of internal controls, Ni, in extant and ancestral networks to the rate of evolution (reactions/my) of carotenoid pathways. P < 0.05 for both standardized regression coefficients (bST). Insets show mean ± s.e.m. evolutionary rates (nodes/my) for loss, retention, and gain of control nodes, correspondingly
