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Table 3 Standardized long-term genetic gain R s after one and 15 generations of weighted genomic selection with a time horizon of 15 generations

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

Scenario

Selection criteria

R s (%)

   
  

G 1

G 15

Increased gain (%) *

ΔF(G 0 -G 10 )

n QTL = 100

RR_wJ

3.39a

44.43ab

2.30

0.050a

 

RR_wD0.2

3.46a

45.80ab

5.46

0.053a

 

RR_wD0.05

3.54a

45.81ab

5.48

0.050a

 

BL_wJ

3.34a

42.96b

−6.79

0.037b

 

BL_wD0.2

3.09a

46.70a

1.32

0.039b

 

BL_wD0.05

3.15a

47.36a

2.76

0.037b

n QTL = 400

     
 

RR_wJ

1.93a

25.08a

6.77

0.051a

 

RR_wD0.2

1.67a

25.46a

8.39

0.052a

 

RR_wD0.05

1.92a

25.91a

10.32

0.052a

 

BL_wJ

1.63a

23.32b

−9.75

0.038b

 

BL_wD0.2

1.64a

26.27a

1.66

0.039b

 

BL_wD0.05

1.74a

25.86a

0.27

0.038b

n QTL = 2000

     
 

RR_wJ

0.81a

11.41cd

3.73

0.050a

 

RR_wD0.2

0.74ab

11.83bc

7.55

0.054a

 

RR_wD0.05

0.78ab

12.10ab

10.00

0.052a

 

BL_wJ

0.73ab

11.00d

−10.86

0.037b

 

BL_wD0.2

0.68ab

12.44a

0.81

0.040b

 

BL_wD0.05

0.68b

11.97abc

−3.00

0.037b

  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 R s from unweighted GP relative to weighting GP under the same prediction model.