Figure 2.

Unrooted neighbor-joining phylogenies constructed by using uncorrected mtDNA sequence divergences. These data are as follows: 43 complete cattle control region sequences sampled in disparate locations on three continents (4, 14); 42 complete sheep control region sequences from a mixed breed New Zealand sample (16); 11 partial pig control region sequences that include both East Asian and European varieties (15); 15 cytochrome b sequences from water buffalo (12, 13); and 18 complete horse control region sequences (25).