Fig. 8: Significant positive correlations between DMSP-producing phytoplankton with heterotrophic bacteria of Roseobacter and non-Roseobacter lineage.

A Maximum-likelihood tree of top 50 MRGs and 46 most abundant other bacteria in the Australian-Microbiome time-series. Heatmap shows avg. Spearman’s Rho of all significant positive co-occurrences with high DMSP-producing phytoplankton (HiDP). B Comparison of avg. Spearman’s Rho between MRGs (pink) and bacteria (grey) with non DMSP-producers (NoDP), low DMSP producers (LoDP) and HiDP. Asterisks denotes significant difference as indicated by Tukey’s HSD (p < 0.05). Error bars are mean ± standard deviation.