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Table 1 Details of animal numbers in all experimental crosses (see Fig. 4)

From: Measurements of hybrid fertility and a test of mate preference for two house mouse races with massive chromosomal divergence

   

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

  1. Diploid chromosome number was verified for a sample of offspring (see text)