Table 2.
Comparison of Fatness Traits between the Male Pigs with Chinese Chromosome Y and with European Chromosome Y.
| Trait | ChrY-A |
ChrY-E |
P Value (t-test) | P Value (10 PCs as covariates) | Phenotypic Variance Explained by ChrY (%) | ||
|---|---|---|---|---|---|---|---|
| N | Mean ± SD | N | Mean ± SD | ||||
| Backfat thickness at the hip (HBFT, cm) | 150 | 3.48 ± 1.02 | 238 | 2.90 ± 1.03 | 6.83 × 10-8 | 6.51 × 10-7 | 6.9 |
| Backfat thickness at the last rib (LRBFT, cm) | 150 | 2.87 ± 0.78 | 238 | 2.49 ± 0.77 | 1.89 × 10-6 | 1.31 × 10-4 | 5.5 |
| Backfat thickness at the first rib (FRBFT, cm) | 150 | 3.70 ± 0.86 | 238 | 3.30 ± 0.86 | 5.54 × 10-6 | 3.35 × 10-3 | 4.9 |
| Backfat thickness at the shoulder (SBFT, cm) | 150 | 4.20 ± 0.91 | 238 | 3.89 ± 0.96 | 8.05 × 10-4 | 2.51 × 10-2 | 2.5 |
| Leaf fat weight (LFW, kg) | 150 | 2.34 ± 0.79 | 237 | 2.04 ± 0.79 | 1.65 × 10-4 | 8.08 × 10-5 | 3.2 |
| Veil fat weight (VFW, kg) | 149 | 0.87 ± 0.21 | 237 | 0.80 ± 0.23 | 1.52 × 10-3 | 3.39 × 10-2 | 1.9 |
Note.—
ChrY-A denotes Asian Y haplogroup; ChrY-E denotes European Y haplogroup.