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Table 1 QTL detections on single populations and joint QTL detections

From: Fine mapping of fatness QTL on porcine chromosome X and analyses of three positional candidate genes

  

Line-cross model

Dam-family model

Trait and design1

N

LRT2

Pos3(cM)

CI4(cM)

Effect5

LRT

Pos (cM)

CI (cM)

(a) JXAU F2 females

        

  CW (kg)

406

3.8

0

-

-

77.6

1

-

  BFT at shoulder (mm)

406

3.3

62

-

-

67.7

74

-

  BFT at 6–7 rib (mm)

406

12.3*

59

48-68

1.36

79.3

103

-

  BFT at last rib (mm)

406

20.2***

59

51-74

1.56

81.6

59

-

  BFT at hip joint (mm)

406

26.0***

61

47-69

2.35

80.6

35

-

  Average BFT (mm)

406

15.6***

59

44-70

1.41

71.9

103

-

  HW (kg)

406

11.3*

66

50-79

−0.08

75.8

60

-

  IMF (%)

406

18.1***

59

48-67

0.13

78.4

87

-

  LEA (cm2)

406

3.4

74

-

-

98.8

12

-

(b) JXAU F2 males

        

  CW (kg)

498

9.2*

0

0-20

−0.83

98.7

2

-

  BFT at shoulder (mm)

498

18.7***

70

64-79

1.40

77.4

70

-

  BFT at 6–7 rib (mm)

498

18.6***

71

65-77

1.49

61.3

70

-

  BFT at last rib (mm)

498

32.6***

70

72-83

1.67

82.5

70

-

  BFT at hip joint (mm)

498

63.1***

71

68-74

3.19

120.7*

71

68-76

  Average BFT (mm)

498

37.5***

70

66-74

1.98

87.5

70

-

  HW (kg)

498

8.1*

71

38-80

−0.06

79.3

110

-

  IMF (%)

530

33.3***

74

64-78

0.24

107.2*

83

82-87

  LEA (cm2)

473

49.0***

72

71-74

−1.38

119.5*

72

71-74

(c) INRA F2 males

        

  CW (kg)

512

7.2

46

-

-

34.6

28

-

  BFT1 (mm)

516

59.9***

80

74-85

1.30

83.5***

82

78-86

  BFT2 (mm)

516

73.4***

79

74-85

1.46

100.1***

84

78-86

  Average BFT (mm)

516

74.1***

79

74-85

1.40

95.7***

82

75-86

  HW (kg)

517

63.5***

74

72-77

−0.09

81.5***

75

73-78

  IMF (%)

236

21.3***

86

77-87

0.25

40.4

83

-

  LEA (cm2)

484

9.7*

72

47-85

−0.95

39.3

72

-

(c) Joint F2 males

        

  CW (kg)

1010

8.4*

4

0-33

−0.72

121.5

0

-

  Average BFT (mm)

1010

101.8***

76

73-80

1.39

168.5***

76

-

  HW (kg)

1010

66.5***

73

71-77

−0.08

136.5***

74

72-78

  IMF (%)

766

41.6***

86

74-87

0.24

147.6**

83

-

  LEA (cm2)

857

55.7***

72

71-77

−1.38

150.7**

72

-

  1. 1CW carcass weight, BFT backfat thickness, HW ham weight, IMF intramuscular fat content, LEA loin eye area. In INRA experiment, BFT1 was measured between the 3rd and the 4th lumbar vertebrae at 8 cm from the spine; BFT2 measurement was taken three vertebrae beneath the last rib at 6 cm from the mid-dorsal line.
  2. 2LRT likelihood ratio test. Significance levels: * 5% chromosome-wide significance; ** 5% genome-wide significance; *** 1% genome-wide significance.
  3. 3Pos = position.
  4. 4CI confidence interval of QTL position computed by a 1-LOD drop-off method.
  5. 5 QTL substitution effect = Chinese breed allele – European breed allele.
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BMC Genomic Data

ISSN: 2730-6844

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