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Table 1 16S rRNA databases used for the metataxonomic classifiers in this study

From: Ultrafast and accurate 16S rRNA microbial community analysis using Kraken 2

Database Version Release date Sequences Domains Phyla Classes Orders Family Genera Species
Greengenes 13_8 August 15, 2013 203,452 2 89 248 404 513 2102 2952
SILVA 132 December 13, 2017 695,171 5 228 514 1277 1531 9379 -
RDP 11.5 September 30, 2016 3,356,808 2 60 99 154 384 2466 -
  1. For each of the most recently released versions of three 16S rRNA databases, this table describes the total number of sequences and the number of “traditional” nodes represented in their respective taxonomies. The Greengenes numbers refer to the 99% OTU database, and the SILVA values reflect the Ref NR 99 database