Figure 1. Phylogeny of Prnp genotypes. We generated a UPGMA phylogeny based on translated sequences of the Prnp gene reported in GenBank for species within the family Cervidae, labels correspond to Table 1. As out groups, we include the common domestic cow genotype, and major sheep genotypes known to vary in TSE-susceptibility. (* indicates the consensus genotype for each species, ++ indicates Prnp types shown to have reduced susceptibility to TSEs.)