Table 1 Estimates of genetic and residual variance and heritability at five time points (T0, T132, T265, T397 and T530) obtained with three methods: SNPL - covariance structure from 90 SNPs on chromosome 1 (Loiselle et al. 1995), SNPC - covariance structure from 30 selected SNPs with minor allele frequency >0.1 (Szydlowski et al. 2008), PB - covariance structure from pedigree.

Genetic variance

PB

0.05

0.33

1.81

7.49

19.23

SNPL

0.05

0.35

2.10

8.84

23.32

SNPC

0.04

0.28

1.62

6.50

16.21

Residual variance

PB

0.05

0.35

2.05

8.62

21.32

SNPL

0.04

0.27

1.53

6.35

14.98

SNPC

0.06

0.41

2.30

9.58

23.76

Heritability

PB

0.50

0.48

0.46

0.46

0.47

SNPL

0.53

0.56

0.57

0.58

0.60

SNPC

0.40

0.40

0.41

0.40

0.40