Table 2

Summary of the sex-averaged linkage map of grass carp and the homologous zebrafish chromosomes that share at least two markers in common

Grass carp linkage map

Zebra fish genome map


LG

Length of LG (cM)

No. of loci

ALD (cM)

Homologous chromosome1

No. of syntenic loci2

Length of syntenic region (Mb)

Syntenic ALD (Mb)

R


1

95.2

18

5.3

7

11

54.6

5.0

78%

2

69.9

19

3.7

3

7

38.1

5.4

60%

3

68.5

10

6.9

21

3

39.6

13.2

86%

4

61.3

16

3.8

19

8

42.0

5.3

91%

5

57.0

15

3.8

13

8

39.0

4.9

72%

6

56.9

11

5.2

23

4

36.4

9.1

79%

7

56.1

13

4.3

18

9

38.2

4.2

78%

8

55.4

13

4.3

1

7

35.3

5.0

63%

9

55.2

15

3.7

12

3

24.9

8.3

52%

10

54.1

9

6.0

11

2

41.6

20.8

92%

11

53.7

10

5.4

4

5

31.4

6.3

73%

12

50.9

12

4.2

16

8

37.8

4.7

71%

13

50.8

10

5.1

14

3

15.7

5.2

28%

14

47.3

10

4.7

20

7

51.6

7.4

91%

15

43.3

11

3.9

15

8

44.3

5.5

94%

16

41.9

10

4.2

9

4

34.4

8.6

67%

17

40.6

17

2.4

5

8

53.6

6.7

77%

18

39.1

18

2.2

6

9

55.7

6.2

94%

19

38.9

10

3.9

24

5

23.6

4.7

59%

20

34.3

4

8.6

25

2

11.9

6.0

36%

21

29.6

7

4.2

8

6

30.4

5.1

54%

22

28.7

6

7.8

2

2

3.4

1.7

6%

23

24.0

5

4.8

17

4

22.8

5.7

44%

24

23.4

10

2.3

10

3

2.1

0.7

5%

24

23.4

10

2.3

22

2

1.1

0.6

3%

Total

1176.1

279

--

--

138

809.5

--

63%


Average (± SD)

49.0 (± 16.2)

11.6 (± 4.1)

4.2 (± 1.6)

--

5.5 (± 2.7)

32.4 (± 14.6)

6.3 (± 4.0)

--


ALD, average inter-locus distance; '1' the homologous zebrafish chromosome that share at least two markers in common with a given grass carp linkage group; '2', the number of syntenic loci in one pair of grass carp LG and homologous zebrafish chromosome; R, the ratio of syntenic region to displayed region of reference chromosome (Mb) in NIH genetic sequence database http://blast.ncbi.nlm.nih.gov/Blast.cgi webcite; Length of syntenic region (Mb) was calculated based on the distance between the longest syntenic pair of loci in each homologous zebrafish chromosome.

Xia et al. BMC Genomics 2010 11:135   doi:10.1186/1471-2164-11-135

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