Table 1 Basic data description by species
From: A comparison of methods for whole-genome QTL mapping using dense markers in four livestock species
Descriptor | Dairy cattle | Beef cattle | Sheep | Horses | Pigs |
|---|---|---|---|---|---|
Nb of animals | 1221 | 936 | 1067 | 627 | 764 |
Trait | 305-day milk yield (DYD) | meat tenderness | fecal egg count | hock osteochondrosis score | length of carcass |
Population structure | large half-sib families, complex pedigree | small half-sib families, complex pedigree | F1, backcross, backcross × backcross | many small families | three breeds |
Chr studied | 1 | 7 | 12 | 3 | 17 |
Nb of chr markers | 2854 | 1889 | 1424 | 2267 | 1672 |
Length (cM) | 161 | 112 | 79 | 119 | 60 |
Heritability | 0.90 | 0.20 | 0.45 | 0.40 | 0.30 |