Figure 3

Phylogeny of MPRE55 in pig and cow. The phylogram displays the BLAST hits obtained from querying MPRE55 against the fully sequenced BAC libraries for pig and cow. The red dots indicate examples of MPRE55 from the cow and the black dots indicate pig examples. The orthologous sites depicted in Figure 2 are noted by the grey dashed lines and the word "orthologues." Also shown are the Most Recent Common Ancestors (MRCA) between species in green and, in blue, the MRCA for the 2 orthologues (OMRCA). In both cases the BACs covered about 1% of the total genome. The MRCA lie within a relatively narrow band of time consistent with a single speciation event and there appears to be considerable radiation among elements following speciation (i.e., time frame spanning MRCA).