Table 1.
Offspring sex ratios and Spiroplasma infection. (Data shown for infected recipient flies whose offspring were either positive or negative for Spiroplasma infection. Also shown are the offspring sex ratios for control flies that had not been exposed to Spiroplasma.)
| recipient species | parental female type (n) | offspring infection | proportion female offspring (total number of offspring) |
|---|---|---|---|
| D. nebulosa | infected recipient (1) | ≥1 positive | 0.52 (93) |
| infected recipient (6) | all negative | 0.54 (512) | |
| uninfected control (7) | — | 0.496 (1436) | |
| D. willistoni | infected recipient (1) | ≥1 positive | 0.58 (113) |
| infected recipient (2) | all negative | 0.55 (138) | |
| uninfected control (7) | — | 0.530 (747) |