Table 1.
Skeletal analysis of WT, Gasp1−/−, Gasp2−/−, and Fst−/− mice in C57BL/6 background
| Genotype | WT | Gasp1−/− | Gasp2+/− | Gasp2−/− | Gasp2−/−; Fst+/− | Gasp2+/−; Fst−/− | Gasp2−/−; Fst−/− |
| N | 29 | 24 | 65 | 41 | 12 | 6 | 10 |
| Vertebral pattern | |||||||
| C7T13L6 | 28 (96.6) | 24 (100) | 61 (93.8) | 28 (68.3) | — | — | — |
| C7T13L5/6 | — | — | 2 (3.1) | — | 1 (8.3) | — | — |
| C7T13L5 | 1 (3.4) | — | 2 (3.1) | 1 (2.4) | — | 3 (50) | — |
| C7T12L7 | — | — | — | 6 (14.6) | — | — | — |
| C7T12L6/7 | — | — | — | 4 (9.8) | 3 (25) | — | — |
| C7T12L6 | — | — | — | 2 (4.9) | 8 (66.7) | 3 (50) | 9 (90) |
| C7T12L4 | — | — | — | — | — | — | 1 (10) |
| 13th pair of ribs | |||||||
| Intact | 29 (100) | 24 (100) | 63 (96.9) | 12 (29.3) | 1 (8.3) | — | — |
| One anlage | — | — | 2 (3.1) | 5 (12.2) | — | — | — |
| Both anlagen | — | — | — | 3 (7.3) | — | — | — |
| One anlage and one missing | — | — | — | 5 (12.2) | — | 3 (50) | — |
| One missing | — | — | — | 4 (9.8) | — | — | — |
| Both missing | — | — | — | 12 (29.3) | 11 (91.7) | 3 (50) | 10 (100) |
| Attached ribs | |||||||
| 6 | — | — | — | — | — | — | 2 (20) |
| 6.5 | — | — | — | — | — | 1 (16.7) | 6 (60) |
| 7 | 29 (100) | 24 (100) | 65 (100) | 41 (100) | 12 (100) | 5 (83.3) | 2 (20) |
| Cervical ribs | |||||||
| None | 28 (96.6) | 24 (100) | 60 (92.3) | 32 (78) | 3 (25) | 2 (33.3) | — |
| One side | 1 (3.4) | — | 4 (6.2) | 4 (9.8) | 7 (58.3) | 3 (50) | 2 (20) |
| Both sides | — | — | 1 (1.5) | 5 (12.2) | 2 (16.7) | 1 (16.7) | 8 (80) |
The percentage of each genotype is shown in parentheses.