Table 3

Results from stepwise logistic regressions relating the presence and absence of each marker to the two first axes of the principal component analysis (PCA)1, the host-plant (HP), and the three interactions2.

Markers

Axis1

Axis2

HP

Axis1 × HP

Axis2 × HP

Axis1 × Axis 2


11

0.19

(5.7 × 10-4)

NS

NS

NS

NS

NS

13

0.39

(8.22 × 10-6)

-0.34

(5.3 × 10-4)

0.53

(0.15)

NS

NS

NS

19

NS

-0.38

(4.2 × 10-4)

0.56

(0.13)

NS

NS

NS

26

0.10

(0.03)

-0.25

(5.4 × 10-4)

0.98

(2.7 × 10-3)

NS

NS

NS

27

0.09

(7 × 10-2)

NS

-0.96

(1 × 10-4)

NS

NS

NS

29

-0.57

(4 × 10-4)

2.40

(0.24)

2.48

(0.43)

0.37

(0.45)

-2.74

(3 × 10-3)

NS

30

-0.19

(5.4 × 10-3)

1.37

(2.42 × 10-5)

0.74

(0.59)

NS

-1.13

(1 × 10-3)

NS

33

-0.26

(3.64 × 10-9)

NS

0.37

(0.13)

NS

NS

NS

38

-0.45

(4.31 × 10-21)

0.90

(2.37 × 10-7)

NS

NS

NS

NS

39

0.16

(3.8 × 10-5)

NS

-0.090

(0.45)

0.27

(.09)

NS

NS

40

-0.18

(8 × 10-6)

-0.26

(0.93)

0.29

(0.19)

NS

0.43

(0.10)

NS

42

-0.18

(0.37)

-0.66

(6 × 10-5)

-0.74

(0.02)

0.34

(0.02)

NS

NS

52

0.33

(1 × 10-7)

-1.6

(6 × 16-16)

-0.22

(0.86)

NS

0.97

(1 × 10-3)

NS

62

-0.18

(0.37)

0.46

(4 × 10-3)

0.34

(0.39)

0.31

(3 × 10-4)

NS

NS

63

0.59

(1 × 10-22)

-0.76

(0.89)

-0.86

(0.16)

-0.18

(0.20)

0.80

(0.04)

NS


65

-0.19

(0.37)

-0.44

(8 × 10-5)

0.45

(0.47)

0.20

(0.09)

NS

NS


68

NS

0.93

(0.05)

0.04

(0.52)

NS

-1.05

(4.3 × 10-5)

NS


1 Axis 1 and axis 2 are the two first PCA components (representing respectively 76 and 20% of total inertia) of the projection of altitude and nine climatic variables calculated from the latitude/longitude as yearly mean of monthly values for the period 1961 to 2001 (see Methods for more details).

2Statistically significant logistic regression coefficients are indicated in bold (p-values for each coefficient are given in parenthesis). NS: the correlation was not significant.

Manel et al. BMC Evolutionary Biology 2009 9:288   doi:10.1186/1471-2148-9-288

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