Fig. 4.

Relationships among gene dispensability, connectivity, expression similarity, and evolutionary divergence. (A) Dispensability as a function of degree and expression similarity among paralogs (as in Fig. 3A), tested separately for pairs with different Ks values. (B) The proportion of remote (Ks > 1) pairs in each window of degree connectivity. Similarity to data in Fig. 2, all duplicated genes at each value of degree connectivity were pooled. Then, the proportion of genes in each pool that have a remote paralog was computed and shown on the y axis.