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Table 3 Median stage of development of male and female S. poulsonii uninfected D. nebulosa embryos of ages 4–24 h AEL. () = number of embryos. Wilcoxon test results compare male and female development stage.

From: The pathology of embryo death caused by the male-killing Spiroplasma bacterium in Drosophila nebulosa

Cohort (h AEL)

Median stage of embryonic development

Wilcoxon test results

Significance

 

Male

Female

  

4–6

8 (39)

8 (40)

1531

0.749

6–8

10 (42)

10 (35)

1688

0.581

8–10

11 (82)

11 (80)

6356

0.243

10–12

11 (13)

12 (13)

170

0.761

12–14

14 (39)

13 (39)

1642

0.282

14–16

13.5 (40)

14 (34)

1291

0.0264

16–18

14 (25)

15 (19)

40.5

0.0001

18–20

17 (21)

17 (28)

5075

0.4083

20–22

17 (2)

17 (5)

N/A

-

22–24

17 (4)

17 (5)

N/A

-