Figure 1.

Phylogenetic tree highlighting the position of D. baarsii relative to the other type strains of related genera within the class Deltaproteobacteria. The tree was inferred from 1,465 aligned characters [12,13] of the 16S rRNA gene sequence under the maximum likelihood criterion [14] and rooted in accordance with the current taxonomy. The branches are scaled in terms of the expected number of substitutions per site. Numbers above branches are support values from 1,000 bootstrap replicates [15] if larger than 60%. Lineages with type strain genome sequencing projects registered in GOLD [16] are shown in blue, published genomes [17] and INSDC accession CP000478 for Syntrophobacter fumaroxidans in bold.