FIG. 2.

ML tree of partial FIVpco pol sequences from free-ranging cougars in the Rocky Mountains (United States and Canada). Taxa designated SR represent animals from the study area. For each SR individual, one sequence was randomly selected from a larger data set. Taxa designated Pco represent previously described FIV pol sequences from other cougar populations in western North America. The state or province where the animal was captured is indicated in boldface letters (YNP, Yellowstone National Park). Branch lengths of >0.02 are shown below the branches. The FIVpco sequence from a Vancouver Island cougar (PLV1695) was used as an outgroup. The values next to tree nodes represent bootstrap values of >70 based on 500 replicates using an NJ tree algorithm and the same model of substitution used for the ML tree.