Fig. 1
From: High proportions of bacteria and archaea across most biomes remain uncultured
Best hit percent identities of environmental sequences to both isolate 16S rRNA gene sequences in the SILVA database (left column) and a filtered version of the RDP database (right column) from a two PCR-based studies analyzed in Martiny 2019, and b a large set of dereplicated OTU sequences free from primer bias and from diverse environments [16]. Median best hit percent identities for each dataset are marked with a red line and the percentage of sequences, which had best hits at >97% identity are marked in green
