Skip to main content

Table 1 Results from phylogenetic generalized least squares (PGLS) analyses

From: Variations in the breeding behavior of cichlids and the evolution of the multi-functional seminal plasma protein, seminal plasma glycoprotein 120

Trait

R2

F

df

p

Lambda

Predictors

Coefficient(estimated)

Std. Error

t

P

Mitochondrial tree

Glycosylation

0.74

30.11

4, 38

< 0.001

Estimated lambda: 1

Stocked-sperm fertilization

−0.18

0.19

−0.92

0.36

    

lower bound: 0.000, p < 0.0001

Substrate fertilization

0.03

0.17

0.17

0.86

    

upper bound: 1.000, p = 1

Oral fertilization

0.82

0.19

4.41

< 0.001*

     

Sperm competition

0.01

0.027

0.50

0.62

SPP expression

0.70

21.8

4,38

< 0.001

Estimated lambda: 0.64

Stocked-sperm fertilization

−0.14

0.28

−0.52

0.61

    

lower bound: 0.000, p = 1

Substrate fertilization

0.002

0.22

0.008

0.99

    

upper bound: 1.000, p = 0.001

Oral fertilization

1.10

0.24

4.66

< 0.001*

     

Sperm competition

0.01

0.027

0.50

0.62

Sperm immobilization by N-terminal region of SPP120

0.94

47.4

4,7

< 0.001

Estimated lambda: 1

Stocked-sperm fertilization

0.31

0.14

2.21

0.06

    

lower bound: 0.000, p = 0.02

Substrate fertilization

0.19

0.08

2.49

0.04*

    

upper bound: 1.000, p = 1

Oral fertilization

−0.3

0.07

−3.87

< 0.001*

     

Sperm competition

−0.04

0.02

−1.72

0.12

Nuclear markers

Glycosylation

0.84

21.7

4.16

< 0.001

Estimated lambda: 0

Stocked-sperm fertilization

−0.32

0.28

−1.16

0.27

    

lower bound: 0.000, p = 1

Substrate fertilization

−0.16

0.21

−0.78

0.45

    

upper bound: 1.000, p = 0.09

Oral fertilization

0.65

0.22

2.97

< 0.01*

     

Sperm competition

0.11

0.05

2.22

0.04*

SPP expression

0.72

10.5

4,16

< 0.001

Estimated lambda: 0

Stocked-sperm fertilization

−0.13

0.53

−0.24

0.81

    

lower bound: 0.000, p = 1

Substrate fertilization

−0.07

0.39

−0.18

0.86

    

upper bound: 1.000, p = 0.01

Oral fertilization

1.03

0.41

2.49

0.02*

     

Sperm competition

0.09

0.09

1.03

0.32

Sperm immobilization by N-terminal region of SPP120 *tree of SPP120 was used

0.89

24.9

4,7

< 0.001

Estimated lambda: 0

Stocked-sperm fertilization

0.39

0.09

4.08

< 0.005*

    

lower bound: 0.000, p = 1

Substrate fertilization

0.22

0.06

3.73

< 0.001*

    

upper bound: 1.000, p = 0.50

Oral fertilization

−0.24

0.06

−3.86

< 0.005*

     

Sperm competition

−0.06

0.02

−2.58

0.04*