Fig. 2.
Neighbor-Joining network of concatenated nucleotide-polymorphism genotypes from 521 M. haemolytica genotype 1 isolates. Letters and ellipsoids within the network represent subtypes and their boundaries, respectively. Non-italicized numbers within the network represent maximum-likelihood support, and italicized numbers represent bootstrap support. The asterisk represents recombinant sequence of 2e on the backbone of 1b. The scale bar represents substitutions per site