Figure 4. Evolution of transcript expression plasticity. (A) We grouped transcripts with significant interaction effects into one of four categories based on patterns of evolution in expression plasticity: (1) Assimilated: plasticity in the ancestral high-predation population but a loss of plasticity in the derived low-predation population; (2) Accommodated: a change in the degree, but no the direction, of plasticity in the derived as compared to the ancestral population; (3) Evolved plastic: no plasticity in the ancestral high-predation population but an emergence of plasticity in the derived low-predation population; (4) Reversed: opposing directions of plasticity in high- versus low-predation populations. We categorized remaining transcripts that had a significant main interaction effect, but no significantpost hoc rearing differences as unclassified. Adapted from Renn & Schumer (2013). (B) All categories were represented in both Aripo and Quare datasets.