Fig. 2

a Representation of the Clostridium sp. AWRP chromosome. The outermost ring shows the coordinates. The coding sequences in the sense and antisense strands are colored blue and orange, respectively. tRNAs and rRNAs are shown in the third ring and colored red and green, respectively. The fourth and fifth rings represent the deviations in the GC content and skew from their average values, respectively (purple, negative deviation; and dark green, positive deviation). b Venn diagram showing the numbers of orthologous genes (OGs) in the genomes of Clostridium sp. AWRP and its relatives. Detection of the orthologs was performed according to Bengelsdorf et al. [29], after excluding pseudogenes. The number of total protein-coding genes, OGs and paralogs are shown under the species names. Note that the numbers of total protein-coding genes for the four reported strains have been changed from the previous work, due to the recent reannotation of prokaryotic genomes by NCBI