FIG 3.

Phylogenetic relationships of the Rickettsia species detected in ticks removed from birds in Texas, 2013 to 2014, based on partial gltA gene sequences (492 positions) and inferred by the neighbor-joining method. The percentages of replicate trees in which the associated taxa clustered together in the bootstrap test (500 replicates) are shown next to the branches when they were ≥60%. The evolutionary distances were computed using the maximum composite likelihood method and are in the units of the number of base substitutions per site. The sequences generated in the current study are in bold. Sequences downloaded from GenBank for comparison are labeled with their accession numbers.