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. 2010 Jul 29;5(2):285–304. doi: 10.1038/ismej.2010.113

Figure 5.

Figure 5

Cluster analysis of several metagenomes based on matches to different COG and KEGG categories normalized to the respective number of sequence fragments. For COGs, only functional categories having at least 10 matches in all 7 metagenomes were retained (831 COGs), from which the most frequent 74 are shown (see also Supplementary Figure S19). For KEGGs, only functional categories having at least 1 match in all 7 metagenomes or at least 20 matches in 1 metagenome were retained (148 KEGGs; see also Supplementary Figure S20). The names of particular KEGG categories showing strong differences across metagenomes are shown at the bottom.