The two strategies arose once along with the early divergence of two major branches of the evolutionary tree, and the distribution of genetic trait values measured in P2 (Figure 4c) almost perfectly matches the subsequent branching structure of the tree.
Nodes with a likelihood value of 0.2 or greater were mapped with a regime shift, represented by a change in color, on the subsequent branches.
Although early metazoan phylogeny remains controversial [ 2- 5], among the living phyla sponges were likely the first animal group to diverge, followed by the subsequent branching of placozoans, and then cnidarians/bilaterians.
An extension of the main railway between Beijing and Baotou (in Inner Mongolia), completed in 1958, links Yinchuan to two major regional industrial bases: Baotou to the northeast and Lanzhou (in Gansu) to the southwest; subsequent branch lines extend south to Baoji in Shaanxi province and west to Wuwei in Gansu province.
For the MP analysis, a heuristic search was done using the stepwise addition algorithm for the provisional tree and subsequent branch swapping using the Nearest-Neighbor Interchange (NNI) method.
Then the groups of children along each subsequent branch are treated as individual datasets and the regression analysis was repeated to identify the SNP that next best discriminates between asthma cases and controls.
Tradition would have us start our discussion with the last common ancestor of all deuterostomes and move up the evolutionary tree considering each subsequent branch in turn.
The subsequent discharge branch that defines the plastic behavior of the material is approximated with three line segments.
Classical decapitation experiments showed that the main shoot apex exerts an inhibitory effect over subsequent branch outgrowth, a phenomenon known as apical dominance.
This approach is called "phylogenetic bracketing" [ 97], which obtains not only minimum, but also maximum constraints on the timing of a branching event using the dates of the preceding and subsequent branching episodes [ 98, 99].
