Parameters and results for four simulation settings under the subfunctionalization model (model Ib in [5]) and neofunctionalization model (model IIc in [5]).

Fraction of edge loss indicates the number of edges that a duplicated gene loses, when it undergoes subfunctionalization, as a proportion of the number of that gene’s existing edges. Fraction of edge gain indicates the number of new edges a duplicated gene gains, when it acquires a new function, as a proportion of the number of that gene’s existing edges. The correlations are calculated by applying Spearman’s rank correlation. (p-values are less than .).