Table 4 Number of detected QTLs on each chromosome for some important traits in cattle breedsa
Traits | Chromosomes | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
2 | 5 | 8 | 11 | 12 | 14 | 18 | 19 | 22 | 23 | 25 | 26 | 27 | 28 | 29 | |
Average daily gain | 0 | 1 | 1 | 2 | 0 | 6 | 0 | 0 | 3 | 0 | 0 | 2 | 0 | 0 | 4 |
Meat percentage | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Body weight (mature) | 2 | 2 | 1 | 2 | 4 | 1 | 3 | 3 | 1 | 2 | 0 | 2 | 2 | 1 | 2 |
Height (mature) | 0 | 3 | 5 | 0 | 3 | 3 | 0 | 0 | 1 | 1 | 1 | 3 | 1 | 0 | 1 |
Carcass weight | 7 | 4 | 4 | 3 | 2 | 9 | 0 | 0 | 2 | 3 | 2 | 2 | 3 | 2 | 5 |
Calving ease | 2 | 2 | 5 | 1 | 3 | 3 | 8 | 5 | 3 | 4 | 7 | 4 | 1 | 2 | 0 |
Calf size | 0 | 2 | 0 | 0 | 3 | 0 | 6 | 3 | 0 | 0 | 6 | 2 | 0 | 0 | 2 |
Clinical mastitis | 0 | 8 | 0 | 4 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
Somatic cell score | 2 | 5 | 2 | 5 | 3 | 7 | 8 | 5 | 2 | 2 | 2 | 1 | 3 | 1 | 1 |
Heat tolerance | 0 | 0 | 1 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 0 |
Dairy capacity | 0 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Udder attachment | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 4 | 1 | 4 | 0 | 3 | 0 | 1 | 0 |
Dry matter intake | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 |
Insemination per conception | 0 | 4 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
Milk fat traits | 2 | 7 | 0 | 2 | 5 | 8 | 5 | 4 | 2 | 1 | 1 | 10 | 0 | 0 | 2 |
Milk protein traits | 2 | 11 | 7 | 6 | 2 | 14 | 7 | 4 | 4 | 7 | 7 | 6 | 3 | 6 | 0 |
Milk yield | 3 | 7 | 1 | 4 | 4 | 8 | 4 | 1 | 1 | 5 | 1 | 4 | 2 | 3 | 0 |
Tick resistance | 1 | 2 | 0 | 1 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 1 | 0 | 0 |
Immunoglobuin G level | 1 | 0 | 4 | 1 | 0 | 3 | 3 | 0 | 0 | 2 | 0 | 0 | 0 | 1 | 0 |
Total detected QTLs | 149 | 175 | 88 | 110 | 93 | 163 | 124 | 168 | 87 | 84 | 84 | 119 | 74 | 57 | 97 |