FIG 1.

A maximum likelihood tree based on 16S rRNA gene sequence comparisons of ∼1,200 aligned bases showing the relationship between the Treponema strains isolated here (shown in bold type) from sheep foot CODD lesions and other DD-associated and commensal treponeme 16S rRNA gene sequences. Accession numbers are shown in parentheses. Bootstrapping was performed 10,000 times, and for clarity, only bootstrap values above 70% are shown. Previously reported 16S rRNA gene sequences from BDD lesions are indicated by an asterisk.