Table 2.
Rescue of male killing by PSR.
| Cross | Nm | Daughters | (SE) | Sons | (SE) | Brood | (SE) | %Sons |
|---|---|---|---|---|---|---|---|---|
| LabII × LabII | 15 | 67.9 | (6.2) | 36.8 | (6.9) | 104.7 | (5.2)1,4 | 35.13 |
| LabII × LabII(PSR) | 15 | 0 | - | 103.7 | (8.3) | 103.7 | (8.3)1 | 100.0 |
| LabII(INF) × LabII | 18 | 55.3 | (5.9) | 6.1 | (1.3) | 61.4 | (5.6)2,4 | 9.93,5 |
| LabII(INF) × LabII(PSR) | 17 | 5.2 | (2.9) | 46.1 | (7.3) | 51.3 | (6.4)2 | 89.95 |
Arsenophonus-infected and -uninfected females were crossed to either wild type or PSR-carrying males. Indicated for each cross are the number of single mated mothers (Nm), the average number of daughters and sons surviving to adulthood and their respective standard errors (SE) of the mean, the average brood size and standard error (SE) of the mean, and the average percent (%) sons per brood. (PSR) denotes the presence of the PSR element in the paternal line, which converts fertilized eggs into haploids. These results show that fertilization of the egg with PSR-bearing sperm rescues Arsenophonus-induced lethality, because these offspring develop into haploid males.
The results of Mann-Whitney U tests for the indicated comparisons are as follows:
U=119.5, n1=15, n2=15, P=0.776
U=190.0, n1=18, n2=17, P=0.232
U=214.0, n1=17, n2=15, P<0.004
U=230.0, n1=17, n2=15, P<0.0005
U=284.5, n1=18, n2=17, P<8e-07