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Table 2 Number of additive and dominance significant SNPs jointly identified at a false discovery rate of 5 and 10% for the studied traits in purebreds, crossbreds and combined populations of beef cattle using the Illumina BovineSNP50 BeadChip

From: Genome-wide association scan for heterotic quantitative trait loci in multi-breed and crossbred beef cattle

Traits

Purebreds (n = 1467)

Crossbreds (n = 5327)

Combined (n = 6794)

Additive

Dominance

Additive

Dominance

Additive

Dominance

5%

10%

5%

10%

5%

10%

5%

10%

5%

10%

5%

10%

Birth weight (kg)

5

7

0

0

58

109

1

2

66

116

0

0

Weaning weight (kg)

0

0

0

1

10

21

0

0

18

24

1

1

Pre-weaning daily gain (kg/d)

0

0

0

1

8

10

0

0

2

3

0

1

Average daily gain (kg/d)

1

1

0

0

23

40

0

0

37

49

0

0

Yearling weight (kg)

0

0

0

0

50

71

0

1

64

94

0

0

Hot carcass weight (kg)

0

1

0

0

17

23

0

0

24

29

0

0

Back fat thickness (mm)

0

0

0

0

3

6

0

0

6

8

0

0

Rib eye area (cm2)

0

3

0

0

12

12

0

0

15

19

0

0

Marbling score

0

0

0

0

0

2

0

0

3

4

2

2

Lean meat yield (%)

0

1

0

0

0

0

0

0

7

14

0

0

Yield grade

1

1

0

0

0

0

0

0

0

9

0

0

  1. Purebred individuals have > 80% of Angus, Hereford and Charolais; crossbred individuals included Kinsella composite, Beefbooster TX composite (www.beefbooster.com) and two and more way crosses involving Angus, Hereford, Charolais, Gelbvieh, Simmental, Limousin, and Piedmontese breeds