Fig. 4

Relative abundance of Formosa strain B and related species during four spring phytoplankton blooms indicated by the percentage of metagenomics reads mapped at different nucleotide identities. Reads recruited at ≤ 93% nucleotide identity represent other Formosa spp. that are abundant during the spring bloom events at Helgoland, Germany from 2009 until 2012. Dates on the right indicate the four metagenomes (i.e., time points), which produced highest mapping coverage with the Formosa strain B genome in their respective years. For a summary of all 44 metagenomes (up to 18 time points per year) and their mapping results see Supplementary Table S5