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Table 3 Genetic basis of the birth mass of offspring sired by fathers from two different origins.

From: Island selection on mammalian life-histories: genetic differentiation in offspring size

 

Source

df

MS

F

P

VP

VA ± S.E.

h2 ± S.E.

Mainland

        
 

Sire

7

0.298

2.384

0.047

0.049

0.047 ± 0.020*

0.96 ± 0.41*

 

Dam (sire)

28

0.140

13.010

< 0.001

   
 

Error

171

0.011

     

Island

        
 

Sire

5

0.328

1.676

0.186

0.081

0.012 ± 0.012n.s..

0.14 ± 0.24n.s..

 

Dam (sire)

19

0.294

16.918

< 0.001

   
 

Error

107

0.017

     
  1. Phenotypic variances (VP), additive genetic variances (VA) and heritabilities (h2) of body mass were estimated by half-sib analyses from the variance components among sires separately for the different environments. Standard errors of VA and h2 were estimated using the formula in [59]. The effect of population (P > 0.39 in both origins) was included to the models as a random factor.* P < 0.05, n.s.= non-significant.