Fig. 2: Global variation in gene content (genomic diversity) of Prochlorococcus HLII.
From: Global scale phylogeography of functional traits and microdiversity in Prochlorococcus
A, B Principal component analysis of HLII gene abundance (genomic diversity). Vector length of sea surface temperature is based on variance explained by the environmental factor, while Fe, P, and N is the average vector of nutrient acquisition genes grouped by type. Samples are colored by ocean basin Atlantic Ocean (AO), Indian Ocean (IO), and the Pacific Ocean (PO). C 100 most informative genes for each principal component based on PCA loadings grouped by cluster of orthologous groups (COG) annotations.
