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Table 4 Inbreeding in genomic selection

From: Long-term response to genomic selection: effects of estimation method and reference population structure for different genetic architectures

Generation

 

Unequal

Equal

 

Model

Low

High

Low

High

1

     
 

BM 1

0.8 (<0.1)

1.0 (<0.1)

0.8 (<0.1)

1.0 (<0.1)

 

BM 5

0.9 (<0.1)

0.9 (<0.1)

0.9 (<0.1)

0.8 (<0.1)

 

PLSR 1

1.0 (<0.1)

1.0 (<0.1)

1.0 (<0.1)

0.9 (<0.1)

 

PLSR 5

0.9 (<0.1)

0.9 (<0.1)

0.9 (<0.1)

0.9 (<0.1)

 

GBLUP 1

0.7 (<0.1)

0.8 (<0.1)

0.9 (<0.1)

0.8 (<0.1)

 

GBLUP 5

0.9 (<0.1)

0.8 (<0.1)

0.8 (<0.1)

0.9 (<0.1)

 

BLUP

0.8 (<0.1)

0.7 (<0.1)

0.8 (<0.1)

0.9 (<0.1)

 

RANDOM

0.4 (<0.1)

0.5 (<0.1)

0.4 (<0.1)

0.5 (<0.1)

10

     
 

BM 1

7.1 (<0.1)

7.6 (0.1)

7.1 (0.1)

7.2 (0.1)

 

BM 5

7.2 (0.1)

6.9 (0.1)

7.0 (0.1)

7.0 (0.1)

 

PLSR 1

7.4 (0.1)

7.7 (0.2)

7.4 (0.2)

7.6 (0.2)

 

PLSR 5

7.0 (0.1)

7.3 (0.1)

7.3 (0.1)

7.2 (0.2)

 

GBLUP 1

6.2 (<0.1)

6.5 (<0.1)

6.5 (<0.1)

6.4 (<0.1)

 

GBLUP 5

6.3 (<0.1)

6.6 (<0.1)

6.4 (<0.1)

6.6 (<0.1)

 

BLUP

16.6 (0.3)

17.2 (0.3)

17.1 (0.3)

16.9 (0.3)

 

RANDOM

4.9 (<0.1)

4.8 (<0.1)

4.8 (<0.1)

4.7 (<0.1)

  1. Cumulative change (standard deviation) in level of inbreeding, after one and ten generations of selection (as a percentage) in genetic architectures with a low number of QTL of unequal variance (column 3), a high number of QTL of unequal variance (column 4), a low number of QTL of equal variance (column 5) and a high number of QTL of equal variance (column 6); selection was on breeding values estimated with a Bayesian method (BM), partial least square regression (PLSR), genomic BLUP (GBLUP) or pedigree BLUP (BLUP), or selection was at random (RANDOM); numbers 1 and 5 behind estimation methods indicate the number of generations used in the training population
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Genetics Selection Evolution

ISSN: 1297-9686