Figure 5
From: A genome-wide metabolomic resource for tomato fruit from Solanum pennellii

A correlation network constructed from metabolites involved in chloroplast isoprenoid biosynthesis.
Pearson coefficients (r 0.6 to 0.8 with a p-value significance < 0.05) derived from the metabolite levels associated with all 76 ILs of the S. pennellii collection. Metabolites associated with the Calvin cycle are shown as blue dots, the chloroplast located 2-C-methyl-D-erythritol-4-phosphate (MEP) pathway purple dots, chlorophyll degradation green dots, phytyl synthesis khaki coloured, tocopherol red coloured, prenyl lipid biosynthesis yellow and carotenoid formation orange. Green connecting lines represent positive correlations and red connecting lines negative. Putative hubs derived from the number of connections are circled and the putative metabolites annotated. Collectively, the networks' strengths varied from 0.4 to 0.8 with the average being 0.45. Abbreviations: GGPP, geranylgeranyl diphosphate; IPP, isopentenyl diphosphate; DMAPP, dimethylallyl diphosphate; MEP, methylerythritol pathway.