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Table 2 PGLS analyses of evolutionary rate and sequence length of CatSper 1 in relation to relative testis mass (RTM)

From: Structural evolution of CatSper1 in rodents is influenced by sperm competition, with effects on sperm swimming velocity

Dependent variable

Predictor

n

d.f.

Slope

R2

F

P

λa

P(λ=0)b

P(λ=1)b

ESc

CL (-)d

CL (+)d

Omega

RTM

16

14

-0.049

0.012

0.139

0.855

0.999

< 0.001

1

0.106

-0.438

0.649

Omega

Body mass

16

14

0.0022

0.539

13.939

0.0028

0.999

<0.001

1

0.052

-0.363

1.449

 

Testes mass

  

-0.0924

 

0.14

0.7144

   

0.056

-0.439

0.647

Sequence length

RTM

15

13

-7.214

0.53

14.682

0.002**

0.402

0.257

0.078

0.925

0.359

1.491

Sequence length

Body mass

15

12

0.149

0.778

8.895

0.011*

0

1

0.007

0.779

0.214

1.345

 

Testes mass

  

-21.159

 

33.055

0.0009**

   

1.28

0.714

1.846

  1. P values < 0.05 (*) and < 0.01 (**) indicate statistical significance.
  2. aλ value indicates phylogenetic effect.
  3. bSignificance of log-likelihood ratios for λ against models with λ = 0 and λ = 1 are shown. Statistically significant values are shown in bold.
  4. cEffect size (ES) calculated from the F-values.
  5. dNoncentral 95% confidence limits (CL). Confidence intervals excluding 0 indicate statistically significant relationships and are shown in bold.