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Table 3 Features of the 20 linkage groups

From: Construction of a SNP-based genetic linkage map in cultivated peanut based on large scale marker development using next-generation double-digest restriction-site-associated DNA sequencing (ddRADseq)

LGs

Length (cM)

No. of loci

No. of bins

Density (cM/locus)

No. of Distorted loci

No. of SDRsa

No. of the longest SDRs

Frequency of segregation distortion marker

Largest gap (cM)

Gaps ≤ 5

A01

76.8

83 (5)

55

0.9

25

2

12

30.1%

6.6

93.9%

A02

60.4

129 (3)

102

0.5

5

1

3

3.9%

6.5

98.4%

A03

67.9

113 (2)

73

0.6

44

4

16

38.9%

5.0

99.1%

A04

62.0

109 (2)

72

0.6

24

1

22

22.0%

17.1

98.1%

A05

66.6

80 (4)

62

0.8

43

3

25

53.8%

8.5

94.9%

A06

57.8

72 (2)

53

0.8

5

1

5

6.9%

6.3

95.8%

A07

93.0

81 (3)

71

1.2

16

3

4

19.8%

8.8

93.8%

A08

87.8

34 (3)

31

2.7

6

0

0

17.7%

9.9

84.8%

A09

121.2

132 (4)

111

0.9

14

2

4

10.6%

13.6

93.9%

A10

31.8

37 (2)

31

0.9

14

2

3

37.8%

6.2

97.2%

B01

31.5

89 (2)

67

0.4

65

8

9

73.0%

6.1

98.9%

B02

96.8

75 (3)

59

1.3

45

2

40

60.0%

10.9

90.5%

B03

74.3

115 (5)

56

0.7

28

1

22

24.4%

8.9

98.2%

B04

88.5

117 (3)

97

0.8

64

3

52

54.7%

7.7

94.8%

B05

48.5

59 (2)

47

0.8

32

4

15

54.2%

4.7

100%

B06

98.9

70 (4)

55

1.4

9

1

5

12.9%

12.9

89.9%

B07

63.5

34 (2)

29

1.9

21

2

9

61.8%

11.2

81.8%

B08

78.7

80 (4)

61

1.0

50

2

47

62.5%

6.9

94.9%

B09

48.8

43 (2)

38

1.2

36

2

26

83.7%

8.1

95.2%

B10

91.9

133 (7)

97

0.7

113

3

58

85.0%

11.6

96.2%

Total

1446.7

1685 (64)

1267

0.9

659

47

/

/

/

/

Mean

72.3

84

63

/

/

/

/

/

/

94.5%

  1. The number in parentheses is represents the number of SSR anchor loci in the linkage group.
  2. aSDRs, segregation distortion regions.
  3. ‘Gap ≤ 5’ indicates the percentages of gaps in which the distance between adjacent markers was smaller than 5 cM.