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Table 1 Effect of desiccation selection on recombination rates in 16 regions of the D. melanogaster genome

From: Experimental evolution of recombination and crossover interference in Drosophila caused by directional selection for stress-related traits

 

Control

Desiccation

Control versus desiccation

Interval

rf (%)

χ2a

rf (%)

χ2a

δ rf (%)b

χ2c

P d

X chromosome

y-cv

10.28 ± 0.54

0.38

10.68 ± 0.55

8.52e

3.89

0.27

1

cv-v

19.69 ± 0.71

1.34

26.44 ± 0.79

2.43

34.28

40.74

4.1 × 10–9

v-f

21.89 ± 0.74

0.85

32.12 ± 0.83

3.23

46.73

84.86

3.1 × 10–18

2L chromosome

net-dp

10.70 ± 0.65

1.58

16.92 ± 0.79

0.53

58.13

36.85

2.5 × 10–8

dp-b

29.36 ± 0.96

0.72

29.37 ± 0.96

0.21

0.03

0.00

1

b-pk

5.44 ± 0.48

1.92

5.49 ± 0.48

0.49

0.91

0.01

1

pk-cn

2.08 ± 0.30

0.31

1.91 ± 0.29

1.04

−8.17

0.16

1

2R chromosome

cn-kn

12.11 ± 0.69

3.37

19.01 ± 0.82

3.63

56.98

41.26

4.1 × 10–9

kn-c

2.03 ± 0.30

5.60

1.74 ± 0.28

0.94

−14.29

0.52

1

c-px

24.13 ± 0.90

0.13

28.95 ± 0.95

6.59e

19.98

13.44

1.0 × 10–3

px-sp

6.07 ± 0.50

1.72

5.88 ± 0.50

0.75

−3.13

0.07

1

3rd chromosome

ru-h

18.80 ± 0.82

1.75

20.75 ± 0.85

0.36

10.37

2.70

0.43

h-th

14.40 ± 0.74

2.85

21.11 ± 0.86

3.32

46.60

35.05

5.1 × 10–8

th-cu

5.64 ± 0.49

0.17

4.86 ± 0.45

1.71

−13.83

1.37

0.89

cu-sr

8.20 ± 0.58

0.63

9.18 ± 0.61

6.76e

11.95

1.37

0.89

sr-e

4.94 ± 0.46

0.95

5.99 ± 0.50

1.42

21.26

2.40

0.50

  1. We scored 1,050 individuals of each line (three lines in control and three in selection variant); the total sample size was 6,300 for estimation of recombination frequency (rf) in X chromosome intervals. For each of the other crosses (2L, 2R, and 3), we scored 750 individuals per line, i.e. 4,500 per cross. Thus, the total sample for recombination analysis in desiccation selection experiment was 19,800 flies
  2. aχ2 test for between-lines heterogeneity within either control of selection variants (df = 2)
  3. bδ rf (%), relative change of rf in selection variant compared to control variant
  4. cχ2 test for significance between rf values in selection versus control (df = 1), see Methods
  5. dFalse discovery rate corrected P values (two-tailed test) based on χ 2 c are present to take into account the effect of multiple comparisons
  6. e P <0.05; for more details of this table, see Methods and Additional file 3
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BMC Biology

ISSN: 1741-7007

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