The Moran process on 2-chromatic graphs
Fig 3
Effects of background heterogeneity on a complete bipartite graph with NG = NR = 5.
Background heterogeneity increases the fixation probability of an advantageous mutant (black lines) and decreases that of a disadvantageous mutant (white lines). These effects are monotonic in background heterogeneity, σ. By Theorem 1, this behavior is identical to that of a regular (not necessarily complete) properly two-colored graph with equal numbers of green and red nodes.