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. 2020 Oct 13;15(3):649–657. doi: 10.1038/s41396-020-00803-y

Fig. 3. Potential sources of unannotated genes.

Fig. 3

For each sample, the proportion of unannotated genes was measured as the number of genes without KEGG annotation divided by the total number of genes, the proportions of unclassified 16S rRNA phylotypes at different taxonomic levels were measured as the number of unclassified 16S rRNA phylotypes divided by the total number of 16S rRNA phylotypes. a Comparison of the proportion of genes without KEGG annotation in bare (median = 58.68%) and vegetated soils (median = 58.28%). b Relating the proportion of genes without KEGG annotation to the proportion of unclassified phylotypes at different taxonomic levels. Results of Pearson correlations are shown.