Resolution:
standard / ## Figure 6.
Maximum . The maximum a-posteriori phylogenya posteriori tree (black) relating the ten globins of Fig. 5, and 95% confidence intervals of the
node heights (grey boxes). Most of the tree's topology is well determined, with the
exception of the myoglobin sub-tree. Alpha and beta chain sub-families both support
the traditional ordering of birds, turtles and mammals, while the three myoglobin
sequences support an unconventional phylogeny, as previously observed by Hedges and
Poling [41]. However, the posterior probability for the topology of the myoglobin
subtree is smaller than that for the remaining topology. The marginal posterior probability
(estimated from the MCMC chain) for the monophyly of human and chicken myoglobin is
83.1%, followed by the conventional grouping of turtle and chicken at 11.9%. The third
topologlcal arrangement of myoglobin occurred the remaining 5% of the time, suggesting
significant homoplasy in this sub-family.
Lunter |