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Table 2 Distance and LD (\( {r}_{LD}^2 \)) of adjacent SNPs for each autosome (CHR)

From: The superiority of multi-trait models with genotype-by-environment interactions in a limited number of environments for genomic prediction in pigs

CHR

Length, Mb

Number of SNPs

Mean distance, kb

Mean \( {r}_{LD}^2 \)

Cora

Beijingc

Fujianc

1

300.49

5,525

55.70

0.63

0.63

0.55

2

155.0

3,750

42.34

0.56

0.54

0.51

3

138.07

3,267

43.29

0.54

0.53

0.54

4

136.82

3,453

40.59

0.57

0.57

0.51

5

106.34

2,671

40.78

0.54

0.54

0.60

6

150.43

3,967

38.84

0.61

0.60

0.47

7

128.52

3,563

36.95

0.54

0.53

0.58

8

141.61

3191

45.46

0.57

0.56

0.56

9

146.54

3,533

42.48

0.55

0.57

0.58

10

75.40

2,522

30.63

0.55

0.53

0.51

11

83.61

2,105

40.69

0.52

0.51

0.50

12

60.64

2,247

27.65

0.57

0.56

0.60

13

208.48

4,026

53.04

0.59

0.60

0.58

14

146.71

3,756

40.01

0.59

0.59

0.57

15

150.35

3,208

48.01

0.58

0.59

0.52

16

82.85

2,154

39.41

0.53

0.52

0.51

17

66.13

1,938

34.96

0.58

0.58

0.53

18

58.37

1,569

38.12

0.54

0.52

0.55

Mean

2,336.36b

56,445b

41.05

0.56

0.56

0.55

  1. a Cor: the correlation of rLD values of adjacent SNP pairs between two populations;
  2. b Sum over 18 autosomes
  3. c Yorkshire pig populations from Beijing and Fujian with similar genetic backgrounds