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Table 2 Average genetic gains from generation S0 to S5 of the different selection schemes for production trait (PT), disease resistance (DR) and total merit index (TMI).

From: Introgression of a major QTL from an inferior into a superior population using genomic selection

Scenario

Population structure

Selection criteria

Genetic gain PT

Genetic gain DR

Genetic gain TMI

1

PRL

CBLUP

3.12 (0.10)

-0.04 (0.07)

2.78 (0.09)

 

BACKCROSS

CBLUP

5.61 (0.17)

0.01 (0.11)

5.02 (0.16)

 

BACKCROSS

GBLUP

5.56 (0.19)

1.59 (0.13)

5.69 (0.14)

 

BACKCROSS

GasGBLUP

5.49 (0.18)

2.24 (0.12)

5.91 (0.14)

2

PRL

CBLUP

3.12 (0.10)

-0.04 ((0.07)

2.78 (0.09)

 

BACKCROSS

CBLUP

5.44 (0.17)

0.32 (0.11)

4.71 (0.13)

 

BACKCROSS

GBLUP

5.15 (0.19)

2.14 (0.12)

5.48 (0.13)

 

BACKCROSS

GasGBLUP

5.09 (0.17)

2.73 (0.09)

5.75 (0.13)

  1. All genetic gains are measured in Background genetic standard deviations with standard errors given in parentheses
  2. PT = production trait, DR = disease resistance, EW = relative economic weight, assuming equal genetic variance for the two traits