Table 3

Event-based tree reconciliation

Event costs

Cost

Codivergence

Duplication

Sorting

Switching

0,0,1,2***

50

13-14*

5-7**

4-10

20-23**

1,1,1,1

41

0-9*

3-9

0-0

27-38**

0,1,1,1***

32

9-13*

3-5

0-4

23-29**

1,0,1,1

32

0-5*

9-9

0-0

27-32**

1,1,0,1

41

0-18

3-41

0-271

0-38

1,1,1,0

3

0-0

3-3

0-0

38-38

Event-based analysis of host associations between fig wasp lineages and Ficus species implemented in TreeFitter. Event costs weighting schemes (left column) are ordered as follows: codivergence, duplication, sorting, and switching. Redundant exemplars of the same fig wasp and host-species association were removed for the purposes of the test. * Observed event significantly more than randomised trees P < 0.05. ** Observed events significantly less than randomised trees P < 0.05. *** Total event costs of observed trees were significantly less than the randomised trees P < 0.05.

McLeish and van Noort BMC Evolutionary Biology 2012 12:1   doi:10.1186/1471-2148-12-1