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Table 5 QTL significant at the chromosome-wise level in a Hampshire x Landrace cross

From: Genome-wide identification of quantitative trait loci in a cross between Hampshire and Landrace II: Meat quality traits

Chr Trait n Position (cM) F-value Additive
effect ± SE
Dominance
effect ± SE
Model
1 Estrone 138 123 5.6* 36 ± 157 -537 ± 199 HRNT
2 Acid 53 0 9.2** -9.8 ± 2.4 13.8 ± 8.4 HRNT
  Water content in LD 175 0 5.5* -0.3 ± 0.1 0.7 ± 0.4 HSRNT
  Warner-Bratzler shear force in LD 289 141 5.4* 5.5 ± 2.4 -4.5 ± 3.2 HSRNT
3 Estrone 138 0 6.8** 364 ± 260 -845 ± 385 HRNT
  Warner-Bratzler shear force in LD 289 2 6.2* -9.3 ± 4.2 -22.3 ± 6.6 HSRNT
  Water content in LD 175 142 7.6* -0.3 ± 0.1 -0.2 ± 0.1 HSRNT
  Colour a* 289 150 5.8* 0.2 ± 0.1 0.5 ± 0.2 HSRNT
  Log glycogen 24 h p.m. 111 166 7.1** -0.01 ± 0.02 -0.13 ± 0.04 HSRNT
4 PSE spots in LD 24 h p.m. 289 115 4.9* 0.03 ± 0.05 0.2 ± 0.1 HSRNT
5 Colour NPPC 288 147 7.0** 0.2 ± 0.1 0.03 ± 0.09 HSRNT
6 Intramuscular fat in LD 175 54 7.0* -0,2 ± 0.1 -0.1 ± 0.1 HSRNT
  Drip loss in LD day 3–4 p.m. (24 h) 289 58 7.3* 0.5 ± 0.1 0.5 ± 0.2 HSRNT
  Freezing and cooking loss in LD 289 70 8.3** 1.1 ± 0.3 0.7 ± 0.4 HSRNT
  Total impression 53 120 8.9* -8.0 ± 2.5 13.7 ± 3.8 HRNT
  ΔpH/h 3 h to 5 h p.m. 204 147 5.6* -0.03 ± 0.01 -0.03 ± 0.01 HSRNT
8 Colour NPPC 288 42 5.4* -0.4 ± 0.1 -0.5 ± 0.2 HSRNT
9 Estrone 138 22 5.7* 394 ± 199 -411 ± 250 HRNT
  Chewing time 53 27 6.5* -0.7 ± 2.9 -23.0 ± 6.5 HRNT
  Tenderness 53 29 6.7* 1.3 ± 4.2 33.3 ± 9.3 HRNT
  Total impression 53 32 8.0** 3.3 ± 2.0 15.6 ± 4.4 HRNT
10 ΔpH/h 45 min to 3 h p.m. 279 45 5.3* -0.04 ± 0.01 -0.02 ± 0.02 HSRNT
  ΔpH/h 45 min to 5 h p.m. 216 41 4.6* -0.02 ± 0.01 0.00 ± 0.01 HSRNT
  PSE spots ham 24 h p.m. 289 49 5.1* -0.2 ± 0.1 -0.2 ± 0.1 HSRNT
  Internal reflectance SM 24 h p.m. 289 89 4.6* -1.5 ± 1.2 -5.4 ± 1.8 HSRNT
  Colour a* 289 122 5.0* 0.1 ± 0.2 -0.9 ± 0.3 HSRNT
11 Estrone 138 5 4.4* 76 ± 193 620 ± 238 HRNT
  Log androstenone 139 95 5.4* -0.1 ± 0.2 0.6 ± 0.3 HRNT
12 pH LD 5 h p.m. 225 50 8.1** -0.1 ± 0.0 -0.2 ± 0.0 HSRNT
  ΔpH/h 45 min to 3 h p.m. 279 51 6.3* 0.03 ± 0.01 0.05 ± 0.01 HSRNT
  Internal reflectance BF 24 h p.m. 289 88 5.5* 3.3 ± 1.1 3.6 ± 1.4 HSRNT
13 Intramuscluar fat in LD 175 30 5.2* 0.06 ± 0.04 0.2 ± 0.1 HSRNT
  pH BF 24 h p.m. 289 47 7.2* 0.01 ± 0.01 0.07 ± 0.02 HSRNT
  Appearance 53 114 8.0* 7.8 ± 2.0 -1.8 ± 3.2 HRNT
  Acid 53 123 6.9* 3.8 ± 1.6 -7.6 ± 2.7 HRNT
14 Log androstenone 139 40 5.8** 0.3 ± 0.1 0.0 ± 0.1 HRNT
  Estrone 138 105 4.7* -214 ± 187 406 ± 266 HRNT
15 Intramuscular fat in LD 175 0 6.1* 0.2 ± 0.1 0.4 ± 0.1 HSRNT
  pH LD 5 h p.m. 225 65 5.9* 0.1 ± 0.0 0.04 ± 0.04 HSRNT
  pH BF 24 h p.m. 289 75 6.6* 0.01 ± 0.02 0.07 ± 0.02 HSRNT
  PSE spots LD 24 h p.m. 289 76 6.7* -0.2 ± 0.1 -0.04 ± 0.06 HSRNT
  PSE spots ham 24 h p.m. 289 91 5.6* -0.0 ± 0.1 0.4 ± 0.1 HSRNT
16 Drip loss in LD day 3–7 p.m. (4 days) 268 31 6.9* -0.07 ± 0.1 -0.6 ± 0.2 HSRNT
  Drip loss in LD day 3–4 p.m. (24 h) 289 31 5.2* -0.1 ± 0.1 -0.4 ± 0.1 HSRNT
  Appearance 53 101 5.3* -2.9 ± 2.5 -17.9 ± 5.8 HRNT
18 Log glycogen 2 h p.m. 111 12 8.5** 0.1 ± 0.0 -0.04 ± 0.04 HSRNT
  1. **1% chromosome-wise significance
  2. *5% chromosome-wise significance
  3. LD – M. longissimus dorsi
  4. SM – M. semimembranosus
  5. BF – M. biceps femoris
  6. p.m.-post mortem
  7. The additive effect was defined as the estimated phenotypic difference between animals homozygous for the Hampshire allele and the mean of the two homozygotes.
  8. The dominance effect was calculated as the phenotypic deviation of the heterozygotes from the mean of the two homozygotes.
  9. Model: H = Herd, S = Sex, RN = PRKAG3/RN-genotype, T = Stunning procedure.