Table 1

Sister species characteristics in Isolona and Monodora as well as results from the PCA and, the similarity and background tests.

Mann-Whitney U

Identity test

Background test (1)


Species pair

% geographical overlap

Smaller Range species

MRCA age (95% confidence interval)

PC1

PC2

PC3

D

I

D

I

D

I


Isolona

pleurocarpa-zenkeri

19.6

pleurocarpa

4.5 (1.4-7.9)

*

NS

***

0,25

0,50

***

***

more */more *

more */more **

dewevrei-thonneri

8.9

dewevrei

2.5 (0.4-4.8)

***

NS

***

0,41

0,63

***

***

NS/NS

NS/NS

heinsenii-linearis

32

linearis

2.6 (0.7-4.8)

*

NS

NS

0,40

0,62

***

***

less ***/NS

less ***/more *

campanulata-cooperi

16

cooperi

2.8 (0.9-5.2)

NS

*

NS

0,53

0,69

***

***

NS/more *

NS/NS

congolana-hexaloba

12.6

congolana

6 (2.7-9.8)

***

**

**

0,44

0,60

***

***

NS/NS

NS/NS

Monodora

carolinae-stenopetala

0

no overlap

2.6 (0.9-4.4)

NS

**

**

0,21

0,49

***

***

*** more/NS

*** more/NS

hastipetala-junodii

89.3

hastipetala

1.5 (0.2-3.2)

NS

*

NS

0,05

0,35

***

***

less */less ***

less */less ***

laurentii-myristica

14.3

laurentii

2.4 (0.6-4.8)

*

NS

NS

0,55

0,70

***

***

more ***/more ***

more ***/more ***

myristica-undulata

35.7

undulata

1.6 (NE)

**

***

***

0,43

0,64

***

***

NS/NS

more */NS

crispata-tenuifolia

43

crispata

3.8 (NE)

NS

***

NS

0,46

0,66

***

***

more ***/more *

more ***/more *

laurentii-undulata

0

no overlap

2.4 (0.6-4.8)

NS

**

**

0,23

0,50

***

***

more ***/more ***

more ***/more *


NE = not estimated

*** P < 0,001

** P < 0,01

* P < 0,05

NS not significant

1) the first value corresponds to the test of the first species vs the background of second, and then vice versa

Couvreur et al. BMC Evolutionary Biology 2011 11:296   doi:10.1186/1471-2148-11-296

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