Table 1

Contrasting jackknife support at nodes of the 3-gene jackknife tree for three different search approaches. Contrasting jackknife support (from 500 replicates) at 429 resolved nodes of the 3-gene jackknife-50%-majority-rule-consensus tree (567 terminals) for three different search approaches per jackknife replicate. (1) one heuristic search saving one tree and using simple addition ("simple"); (2) 10 parsimony ratchet iterations, starting from a tree found with simple addition, using the first shortest tree only found within the 10 iterations for consensus tree calculation ("10sv1"); (3) as before, using a strict consensus of all shortest trees found within the 10 ratchet iterations per jackknife replication ("10svAll").

Compared search strategy

Sign test, % first < second

Sign test, p

Wilcoxon test, T

Wilcoxon test, p

Higher support in...

Simple vs. 10sv1

54.9

0.173

10685.5

0.311

---

Simple vs. 10svAll

42.3

0.038

7442.5

0.005

Simple

10sv1 vs. 10svAll

6.9

0.000

1107

0.000

10sv1

Müller BMC Evolutionary Biology 2005 5:58   doi:10.1186/1471-2148-5-58