Figure 2
From: MetaTrans: an open-source pipeline for metatranscriptomics

Comparison of taxonomic classification methods.
Taxonomic assignment in terms of abundance for the fecal sample #1_BF using 16S rRNA sequences mapped with SOAP2 against Greengenes (rRNA.GG.SOAP2), the whole sample analyzed with MG-RAST (MG-RAST), mRNA assigned with Kraken (mRNA.Kraken) and mRNA mapped with SOAP2 against MetaHIT-2014 (mRNA.MetaHIT). This bar plot shows similar taxonomic profiles between rRNA.GG.SOAP2 and MG-RAST whereas they differ with mRNA.MetaHIT and mRNA.Kraken. Unclassified reads are more abundant in the last method.