From: Identification of a second gene associated with variation in vertebral number in domestic pigs
 | Total number of vertebrae |  |  |  |  | |||
---|---|---|---|---|---|---|---|---|
 | 20 | 21 | 22 | 23 |  |  |  |  |
QTL | Number of individuals | Total | Average | Â | Â | |||
Q/Q | Â | 21 | 31 | 2 | 54 | 21.65 | Â | Â |
Q/wt | 3 | 88 | 21 | 1 | 113 | 21.18 | Â | Â |
wt/wt | 14 | 16 | 2 | Â | 32 | 20.63 | Â | Â |
 | 17 | 125 | 54 | 3 | 199 | 21.22 |  |  |
 | No. of thoracic vertebrae |  | No. of lumbar vertebrae |  | ||||
 | 14 | 15 | 16 |  | 5 | 6 | 7 |  |
QTL | No. of individuals | Average | No. of individuals | Average | ||||
Q/Q | Â | 12 | 42 | 15.78 | 11 | 39 | 4 | 5.87 |
Q/wt | 1 | 78 | 34 | 15.29 | 21 | 84 | 8 | 5.89 |
wt/wt | 14 | 16 | 2 | 14.63 | 6 | 20 | 6 | 6.00 |
 | 15 | 106 | 78 | 15.32 | 38 | 143 | 18 | 5.90 |