Table 2.
Effect of KRTAP20-1 on selected wool traits adjusted for the effect of KRTAP6-3 or KRTAP22-1
| Trait1 | Variant2 | Other KRTAP effect | KRTAP20-1 effect3 | |||
|---|---|---|---|---|---|---|
| Gene | P | Absent | Present | P | ||
| GFW, (kg) | A | KRTAP22-1 | 0.141 | 2.51 ± 0.07 | 2.40 ± 0.05 | 0.147 |
| B | KRTAP22-1 | 0.053 | 2.43 ± 0.05 | 2.31 ± 0.09 | 0.120 | |
| C | KRTAP22-1 | 0.105 | 2.38 ± 0.05 | 2.52 ± 0.07 | 0.027 | |
| Yield, (%) | A | KRTAP22-1 | 0.074 | 71.7 ± 1.11 | 72.5 ± 0.77 | 0.442 |
| B | KRTAP22-1 | 0.031 | 72.2 ± 0.74 | 74.1 ± 1.28 | 0.106 | |
| C | KRTAP22-1 | 0.051 | 72.2 ± 0.79 | 70.6 ± 0.98 | 0.006 | |
| MFD, (µm) | A | KRTAP6-3 | 0.002 | 20.5 ± 0.31 | 19.5 ± 0.23 | 0.001 |
| B | KRTAP6-3 | <0.001 | 19.7 ± 0.22 | 20.0 ± 0.38 | 0.482 | |
| C | KRTAP6-3 | <0.001 | 19.6 ± 0.24 | 19.9 ± 0.28 | 0.232 | |
| FDSD, (µm) | A | KRTAP6-3 | 0.071 | 4.39 ± 0.11 | 4.08 ± 0.08 | 0.003 |
| B | KRTAP6-3 | 0.014 | 4.15 ± 0.08 | 4.23 ± 0.14 | 0.510 | |
| C | KRTAP6-3 | 0.014 | 4.14 ± 0.09 | 4.18 ± 0.10 | 0.659 | |
| PF, (%) | A | KRTAP6-3 | 0.007 | 4.56 ± 0.56 | 2.61 ± 0.42 | <0.001 |
| B | KRTAP6-3 | <0.001 | 3.05 ± 0.41 | 3.88 ± 0.69 | 0.149 | |
| C | KRTAP6-3 | 0.001 | 3.04 ± 0.44 | 3.14 ± 0.52 | 0.823 | |
1GFW = greasy fleece weight; Yield = wool yield; MFD = mean fiber diameter; FDSD = fiber diameter standard deviation; PF = prickle factor (percentage of fibers over 30 microns).
2After removal of the sheep that contained the rare variants of ovine KRTAP20-1, there are 319 left for association analyses. When corrected for KRTAP22-1, ten sheep that had rare KRTAP22-1 genotypes are removed, leaving 309 for these association analyses. Of these, variant A is present in 262 sheep and absent in 47 sheep, variant B is present in 33 sheep and absent in 276 sheep, and variant C is present in 68 sheep and absent in 241 sheep. When corrected for KRTAP6-3, 8 sheep that contained rare KRTAP6-3 genotypes are removed, leaving 311 for these association analyses. Of these, variant A is present in 264 sheep and absent in 47 sheep, variant B is present in 33 sheep and absent in 278 sheep, and variant C is present in 68 sheep and absent in 243 sheep.
3Predicted means and standard error of those means are derived from GLMMs with gender and sire included in the models as fixed and random factors, respectively.
P < 0.05 are in bold.