Fig. 2

Patterns of lipid composition differences among species. a Unsupervised hierarchical clustering dendrogram and heatmap based on pairwise correlation-based distances between lipid intensity vectors. Color bar indicates four major lipid clusters: cluster 1 – yellow, cluster 2 – pink, cluster 3 – brown, cluster 4 – gray. b Distribution of centered lipid intensities in each cluster. Each box represents the interquartile distribution of lipid intensities in a sample. The number of lipids contained in a cluster is shown at the top of the panels. Samples colored and ordered by species. c Mass spectrometry output showing 76 computationally annotated TAGs colored by clusters. The x-axis shows the compounds’ mass-by-charge ratio (m/z). The y-axis shows retention time (RT) of the compound on the liquid chromatography preceding mass spectrometry