Neighbor-joining phylogenetic tree, based on 16S rRNA gene sequences (>1,200 bp), showing the relationships between strain TG409T and closely related representative strains within the family Flavobacteriaceae. Rhodothermus marinus in the class Betaproteobacteria was selected as the outgroup. Nodes marked with an open or a closed circle indicate bootstrap support values (from 1,000 replications) of >50% or >95%, respectively. GenBank accession numbers are shown in parentheses. Bar, 2 substitutions per 100 nucleotide positions. The maximum parsimony and maximum likelihood trees showed essentially the same topology (data not shown).