Figure 2. Hierarchical cluster analysis of 850 Acropora millepora and Montipora digitata genes (both coral and Symbiodinium) differentially expressed relative to controls as determined by ANOVA (adjusted P<0.01) in response to algal treatments.

Bars within each column represent fold change difference between treatment and control. Red bars indicate up-regulation relative to control, green indicates down-regulation and black indicates no difference. All genes included in this analysis are in S2 Table.