FIG 4.

Across multiple species of algae, the relative change in gene expression between monoculture and biculture growing conditions significantly predicts the relative change in FAMEs. Correlations between log₂-fold changes of gene expression and FAME in biculture relative to those in monoculture were evaluated via simple linear regression models with false discovery rate significance corrections. Orthologs in Chlorella variabilis were used for gene annotation when possible. Occasionally, we note orthologs from other model organisms from which we needed to infer gene annotation. For genes especially notable for fatty acid biosynthesis (DGATs and PDATs inferred from Arabidopsis thaliana), we show a lack of correlation.