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Table 4 Sheep chromosome details

From: Using comparative genomics to reorder the human genome sequence into a virtual sheep genome

Chromosome

HSA

CGCs

Synteny blocksa

Markers

Mb

Minus gaps (Mb)b

Map length (cM)c

Cytogenetic Mbd

OAR1

1, 2, 3, 21

102

9

119

304.1

276.3

324.4

294

OAR2

1, 2, 4, 8, 9

86

21

102

277.8

259.2

301.3

261

OAR3

2, 9, 12, 22

101

35

106

274.3

251.3

303.2

246

OAR4

7

46

10

41

126.6

126.6

147.8

135

OAR5

1, 5, 19

51

16

39

121.1

117

158.9

126

OAR6

4

37

6

56

123.1

120

155.7

126

OAR7

5, 14, 15

19

9

49

114.8

96.4

148.9

117

OAR8

6

19

3

39

96.8

96.8

128

111

OAR9

6, 8

44

5

42

114.7

111.6

126.9

105

OAR10

13

28

6

27

114.1

95.8

100.2

99

OAR11

17

41

21

37

78.8

78.8

109.6

87

OAR12

1

34

16

31

92.7

82.4

106.4

96

OAR13

10, 20

45

22

32

102.9

98.8

128.3

99

OAR14

16, 19

42

10

39

87.3

78.2

120

84

OAR15

11

48

9

41

85.3

82

123.8

96

OAR16

5

15

2

31

80.6

77.5

84.7

84

OAR17

4, 12, 22

40

11

45

84.7

84.7

130

84

OAR18

14, 15

43

17

36

98.9

80.3

127.7

84

OAR19

3

21

6

28

65.3

65.3

72.1

75

OAR20

6

14

6

41

60.2

58.6

103.3

69

OAR21

11

32

7

19

49.1

49.1

75.5

63

OAR22

10

12

5

18

54.5

54.5

82.9

63

OAR23

18

17

4

40

76.1

74.7

85

78

OAR24

7, 16

26

10

30

70.5

62.4

102.1

63

OAR25

1, 10

26

8

26

54.4

52.3

68.3

63

OAR26

3, 4, 8

19

9

19

55.4

53.9

71.1

57

OARX

X

164

2

40

154.8

152.9

131.35

144

Total

 

1,172

285

1,173

3,018.9

2837.3

3,657.4

3,000

  1. aNumber of sets of cMegaBAC-CGCs with consecutive numbers and same orientation as in the human genome. bPredicted lengths of chromosomes after removal of large gaps, >1 Mb, in the human genome sequence. cMap lengths calculated from Sheep Map 4.6 using the sex-averaged lengths, except for the X chromosome where the length of the female map was used. dChromosome lengths calculated from the sheep ISCNDB (2000) standard cytogenetic maps [47], assuming a genome size, excluding the Y chromosome, of 3 Gb. BAC, bacterial artificial chromosome; CGC, comparative genome contig; Gb, gigabases; HSA, human chromosome; Mb, megabases; OAR, sheep chromosome.