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Table 2 Putative cellular “dark matter” genomes identified in the metagenomes. Eight dark matter (dm) groups representing monophyletic, closely related genomes are listed, along with 22 singleton genomes that are also included in the phylogenetic tree (Fig. 6). The size of a group is calculated as the maximum size of its member bins. Numeric cell values represent the number of bins isolated per sample. Question marks indicate that there is clear evidence (clusters of contigs with high sequence similarity with other member genomes) that at least one genome is present in this sample. However, it was not isolated as bin(s) or included in the phylogenetic analysis because its relative abundance or completeness is low, or because its member contigs are mixed with those from other genomes in the plot, making it difficult to separate. The background color depth is proportional to the total relative abundance of the genome(s)

From: Visualization-assisted binning of metagenome assemblies reveals potential new pathogenic profiles in idiopathic travelers’ diarrhea