FIG. 3.

ML tree of 292 partial FIV env sequences from 28 infected cougars in a population in southeast Wyoming. Mother-kitten groups are indicated by open boxes, and animals with related viruses and confirmed overlap in home ranges are indicated by shaded boxes. Where identical sequences were identified, their number is indicated in parentheses next to the taxon symbol. Branch lengths of .0.01 are shown below the branches. The ML search was terminated after 100,000 iterations (see the text). See Fig. 2 for further descriptions.