Table 1.
Details of animal numbers in all experimental crosses (see Fig. 4)
| Number of offspring born | Number of offspring weaned | Expected | Verified | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cross | Number of crosses | Duration (mean ± SD) [days] | Male | Female | Sex unknown (died as pups) | Total | Male | Female | Total | 2n = 23 | 2n = 24 | 2n = 23 | 2n = 24 |
| P | 14 | 137.7 ± 63.0 | 162 | 163 | 35 | 360 | 162 | 163 | 325 | 325 | 0 | 7 | 0 |
| BC1 | 31 | 84.1 ± 43.2 | 8 | 15 | 0 | 23 | 4 | 12 | 16 | 8 | 8 | 4 | 11 |
| BC2 | 10 | 62.8 ± 33.9 | 54 | 54 | 3 | 111 | 54 | 54 | 108 | ? | ? | 3 | 3 |
| BC3 | 2 | 81.0 ± 52.3 | 9 | 4 | 0 | 13 | 9 | 4 | 13 | ? | ? | 1 | 0 |
Diploid chromosome number was verified for a sample of offspring (see text)