Table 1 Characteristics of nuclear genome sequence in Dioscorea rotundata and other angiosperms

Total length (Mbp)

594.23

119.67

271.16

374.47

GC (%)

35.83

36.06

46.40

43.57

Number of scaffolds (≥ 0 bp)

4723

7

10

14

Number of scaffolds (≥ 1000 bp)

4704

7

10

14

Largest scaffold (Mbp)

13.61

30.43

75.07

43.27

N50 (Mbp)

2.12

23.46

59.13

29.96

N75 (Mbp)

0.77

19.70

48.59

28.44

Number of Ns per 100 kb

282.45^a

155.60

155.85

44.13

Ambiguous bases

1,413,029

–

–

–

Number of genes

26,198

27,416

34,310

42,189

 Number

158,059

141,044

154,104

178,353

 Average number per gene

6.03

5.14

4.49

4.25

 Total length (Mbp)

42.43

33.49

39.01

46.85

 Average size (bp)

268.43

237.46

253.15

262.70

 Average GC (%)

44.08

43.70

51.02

51.12

 Number

105,663

86,212

85,484

94,345

 Average number per gene

4.03

3.14

2.49

2.25

 Total length (Mbp)

83.12

17.87

47.70

53.34

 Average size (bp)

630.33

157.25

398.18

391.23

 Average GC (%)

32.37

32.45

38.29

37.20

 % Total interspersed

46.07

13.32

37.39

44.40

 Total interspersed total length (Mbp)

274.51

15.94

101.39

166.27

 % Short interspersed nuclear elements (SINEs)

0.02

0.17

0.38

0.88

 SINEs total length (Mbp)

0.13

0.20

1.02

3.31

 % Long interspersed nuclear elements (LINEs)

2.43

1.07

2.91

1.29

 LINEs total length (Mbp)

14.46

1.29

7.90

4.83

 % Long terminal repeat (LTR) elements

22.82

6.35

19.31

21.09

 LTR elements total length (Mbp)

135.71

7.61

52.36

78.98

 % DNA elements

6.70

3.08

7.11

16.7

 DNA elements total length (Mbp)

39.83

3.69

19.27

62.82

 % Unclassified

14.20

2.64

7.68

4.36

 Unclassified total length (Mbp)

84.38

3.16

20.84

16.32