Table 4

Mean numbers of the different evolutionary events inferred in order to reconcile the plant and smut phylogenies by TreeFitter.

Approach

Plant tree

Fungal tree

Costs

Cospeciation

Duplication

Host shift

Sorting events

Nb of events

Total cost

P


Keeping one strain per host species

Max

A1

C

6

0.5

16.5

2.5

25.5

32

0.0048**

D

1

0

22

0

23

0

0.0371*

A2

C

7

0.5

15.5

3.5

26.5

31

0.0042**

D

1

0

22

0

23

0

0.0399*

Min

A1

C

4

0

19

1

24

36

0.0430*

D

1

0

22

0

23

0

0.0364*

A2

C

5

0

18

2

25

35

0.0291*

D

1

0

22

0

23

0

0.0434*


Keeping a single representative per fungal species

MinT

B1

C

3

0

12

2

17

30

0.0652

D

0.5

0

14.5

0

15

0

0.3209

B2

C

3

0

12

2

17

23

0.0903

D

0.5

0

14.5

0

15

0

0.3355

MaxT

B1

C

1

0

14

1.5

16.5

30

0.1937

D

0

0

15

0

15

0

1

B2

C

1

0

14

1.5

16.5

30

0.2331

D

0

0

15

0

15

0

1


Eight data sets were used; see legend from Table 3 for their correspondence. Two sets of costs were used: C) maximizing the likelihood of cospeciation events: cospeciation = -1, duplication = 0, sorting events = 2, host shifts = 2; D) minimizing the number of events: cospeciation = 0, duplication = 0, sorting events = 2, host shifts = 0.

Refr├ęgier et al. BMC Evolutionary Biology 2008 8:100   doi:10.1186/1471-2148-8-100

Open Data