Table 2 Summary genetic linkage map statistics for the S. aethnensis × S. chrysanthemifolius F2 genetic map

From: Interspecific crossing and genetic mapping reveal intrinsic genomic incompatibility between two Senecio species that form a hybrid zone on Mount Etna, Sicily

Linkage group

Length

Total marker no.

Dominant marker no.

Codominant marker no.

Add2s length

Method4 length

1

44.5

18

4

14

50.05

49.74

2

29.1

7

4

3

34.65

38.80

3

42.6

10

6

4

48.15

52.07

4

41.3

10

6

4

46.85

50.48

5A

25.8

9

5

4

31.35

32.25

5B

9.5

4

0

4

15.05

15.83

6

41.7

9

7

2

47.25

52.13

7A

14.2

15

14

1

19.75

16.57

7B

3.2

2

1

1

8.75

9.60

8A

27.5

22

16

6

33.05

30.12

8B

5.2

2

1

1

10.75

15.60

9

15

8

7

1

20.55

19.29

10A

10

11

8

3

15.55

12.00

10B

4.2

2

0

2

9.75

12.60

Total

313.8

127

77

50

391.56

407.06

Mean

22.41

9.07

5.50

3.57

27.97

29.08

s.d.

15.56

5.88

4.55

3.37

15.56

16.65

  1. Map distance measures are in Kosambi centiMorgan units. Add2s length is an estimate of chromosome length calculated as linkage group length plus twice mean linkage group distance. Method4 length is another estimate of chromosome length calculated as linkage group length times (marker number+1)/(marker number −1).
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