Fig. 5
From: Microbial diversity of co-occurring heterotrophs in cultures of marine picocyanobacteria
Representation of picocyanobacterial enrichment culture heterotrophic bacterial OTUs in global ocean surveys. a Location of the sampling sites of the bioGEOTRACES expeditions. b Example of a heterotrophic OTU (in the family Pelagibacteraceae) abundant in bioGEOTRACES, but absent from cultures. c Distribution of the most ubiquitous OTUs in cultures across the bioGEOTRACES sites. Such OTUs were present in almost all bioGEOTRACES sites (Cosmopolitan), some sites (Intermediate), or only a few sites (Sparse). Scale bar indicates the log10 relative abundance (number of reads normalized by number of non-Prochlorococcus, non-Synechococcus reads) at a given site. See also Figure S8 for the distribution of some OTUs abundant in bioGEOTRACES, but not prevalent in culture