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Table 4 Standardized long-term genetic gain R s after one and 40 generations of weighted genomic selection and rate of inbreeding with a time horizon of 40 generations

From: Upweighting rare favourable alleles increases long-term genetic gain in genomic selection programs

Scenario

Selection criteria

Rs (%)

   
  

G 1

G 40

Increased gain(%) *

ΔF(G 0 -G 10 )

n QTL = 100

     
 

RR_wJ

3.39a

52.24e

14.23

0.050ab

 

RR_wD0.2

3.38a

53.47de

16.90

0.047bc

 

RR_wD0.05

3.60a

55.83cd

22.06

0.046d

 

BL_wJ

3.25a

56.86bc

11.36

0.037e

 

BL_wD0.2

3.28a

59.55ab

16.63

0.035ef

 

BL_wD0.05

3.31a

60.58a

18.64

0.033f

n QTL = 400

     
 

RR_wJ

1.93a

32.37d

24.31

0.052ab

 

RR_wD0.2

1.84a

33.04cd

26.88

0.048bc

 

RR_wD0.05

1.76a

34.06c

30.80

0.045d

 

BL_wJ

1.62a

35.52b

14.47

0.038e

 

BL_wD0.2

1.65a

37.01ab

19.27

0.035ef

 

BL_wD0.05

1.70a

37.51a

20.88

0.034f

n QTL = 2000

     
 

RR_wJ

0.81a

15.60c

23.91

0.050ab

 

RR_wD0.2

0.80ab

15.96c

26.77

0.049bc

 

RR_wD0.05

0.77ab

16.17c

28.44

0.044d

 

BL_wJ

0.73ab

17.47b

13.52

0.037e

 

BL_wD0.2

0.73ab

18.47a

19.75

0.036ef

 

BL_wD0.05

0.65b

18.48a

20.08

0.034f

  1. Different superscripts in the same column show significant differences (p < 0.05); standard errors for all means are for the long-term genetic gain are < 0.21% for G1, < 0.79% for G15 and for <0.01 ΔF; *the increase in Rs from unweighted GP relative to weighting GP under the same prediction model.