FIG. 2.

Rooted neighbor-joining tree constructed by using partial gyrA sequences of gelatin isolates (indicated with an “R-” number) attributed to species of the Bacillus subtilis group based on 16S rDNA sequencing among strains from the study of Chun and Bae (4). Bootstrap values (expressed as percentages of 1,000 replications) of >60% are shown at branch points. Accession numbers are given in parentheses. The tree was rooted by using the gyrA sequence of Bacillus sp. strain C125 (AB010081) as an outgroup. The scale bar indicates 0.1% nucleotide substitutions. B., Bacillus.