A Summary of important genetic traits among strains TX07-7308, ATCC 25015, ATCC 25017, 3523, Fx1, U112, and Schu S4. ArsRB. Arsenic resistance locus, GlcUA. Glucuronate metabolism locus, Lac. Lactose metabolism locus, Opp. Oligopeptide ABC transporter locus, Thi. Thiamine biosynthesis locus. + indicates the presence and – indicates the absence of a particualr locus in each strain. B. Neighbor joining tree using succinate dehydrogenase (sdhA) genes. Phylogenetic relationships among strains TX07-7308, ATCC 25015, ATCC 25017, U112, and eleven other Francisella isolates based on SdhA sequences are shown. Nodes with bootstrap support greater than 70% are indicated. C. As in Figure2B, but using full-length 16S rRNA genes.