Release 80 Statistics

Rank Bacterial Taxa Archaeal Taxa
Phylum 99 10
Class 263 30
Order 705 84
Family 1,592 153
Genus 5,426 387
Species 12,356 718

Comparison of taxonomic ranks between GTDB and NCBI

Comparison of GTDB and NCBI taxonomic assignments across 84,634 bacterial genomes from RefSeq/GenBank release 80. For each rank, a taxon was classified as being unchanged if its name was identical in both taxonomies, passively changed if the GTDB taxonomy provided name information absent in the NCBI taxonomy, or actively changed if the name was different between the two taxonomies..

Relative evolutionary divergence

The following graphs show the relative evolutionary divergence (RED) of taxa at each taxonomic rank (0=phylum, 1=class, ..., 5=species). RED values provide an operational approximation of relative time with extant taxa existing in the present (RED=0), the last common ancestor occurring at a fixed time in the past (RED=1), and internal nodes being linearly interpolated between these values according to lineage-specific rates of evolution. The grey bars indicate the 10th, 50th, and 90th percentile of the RED distribution at each rank. RED intervals for normalizing taxonomic ranks were operationally defined as the median RED value at each rank ±0.1 (indicated by the yellow bars; red bars indicate ±0.2).