He could, however, count the bigger branches in the tree.
"It's targeting certain branches in the tree of life," Dr. Davis said.
These branches in the tree, the branches, here they are, the branches are called edges.
Jarvis, E. D. et al. Whole-genome analyses resolve early branches in the tree of life of modern birds.
They developed computer codes that correlate distances between branches in the tree to extrapolate back to the epidemic's origin.
Statistical support for internal branches in the tree was obtained by 1000 bootstrap replicates.
To check for positive selection on the other 18 branches in the tree, a Branch-Sites analysis was carried out.
However, for identifiability reasons, we cannot afford as many local clocks as there are branches in the tree.
Moreover, Q and T are the closest taurine branches in the tree (Figure 2) with a divergence time of about 40 50 ky (Table 3).
UPGMA is likely to result in incorrect topology as the result of the imbalanced distribution of variation among putative branches in the tree.
It is possible that additional major branches in the tree of life might exist, branches that have been missed due to the limitations of rRNA PCR.
