Table 4.
Significant association analysis between SNP effects and meat quality traits in Snow Dragon beef population (LSM±SE)*
| SNP | Genotype | CW (kg) | CCW (kg) | DP (%) | RA (cm2) | RW (cm) | RL (cm) | FT (cm) | CT (cm) | CS | BFT (cm) | CF (kg) | FCS | LCS | MS |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SNP1 | AA | 344.39±10.71 | 268.85±21.93 | 0.46±0.04 | 33.99±1.10 | 5.44±0.11a | 8.91±0.16 | 5.58±0.15 | 2.29±0.13 | 3.04±0.27 | 2.27±0.13 | 2.34±0.09 | 4.00±0.06 | 2.59±0.14 | 2.19±0.22 |
| AG | 344.92±6.70 | 311.85±13.72 | 0.53±0.02 | 36.60±0.69 | 5.65±0.07ab | 9.21±0.10 | 5.62±0.09 | 2.43±0.08 | 3.23±0.17 | 2.16±0.08 | 2.47±0.06 | 4.03±0.04 | 2.93±0.09 | 2.77±0.14 | |
| GG | 355.35±8.39 | 315.35±17.18 | 0.54±0.03 | 37.19±0.87 | 5.79±0.08b | 9.15±0.13 | 5.77±0.11 | 2.27±0.10 | 3.25±0.21 | 1.94±0.10 | 2.44±0.07 | 3.95±0.05 | 2.64±0.11 | 2.55±0.17 | |
| p value | >0.05 | >0.05 | >0.05 | >0.05 | <0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.05 | >0.05 | |
| SNP4 | AA | 376.08±9.19A | 349.01±19.10a | 0.58±0.03 | 37.97±0.99 | 5.72±0.10 | 9.44±0.15 | 6.06±0.12A | 2.66±0.11A | 3.69±0.24 | 2.06±0.12 | 2.61±0.08a | 4.03±0.05 | 2.71±0.12 | 2.74±0.20 |
| AG | 340.51 ±5.83B | 290.81 ±12.11b | 0.49±0.02 | 35.83±0.63 | 5.64±0.06 | 9.04±0.09 | 5.52±0.08B | 2.24±0.07B | 3.05±0.15 | 2.17±0.07 | 2.37±0.05b | 3.99±0.03 | 2.82±0.08 | 2.51±0.13 | |
| GG | 340.04±12.47AB | 296.95±25.92ab | 0.51±0.04 | 35.72±1.35 | 5.57±0.13 | 9.12±0.20 | 5.63±0.17AB | 2.31±0.15AB | 2.89±0.32 | 1.84±0.16 | 2.46±0.11ab | 4.00±0.07 | 2.58±0.17 | 2.58±0.27 | |
| p value | <0.01 | <0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.01 | <0.01 | <0.05 | >0.05 | <0.05 | >0.05 | >0.05 | >0.05 | |
| SNP5 | CC | 341.68±5.16A | 298.82±10.78 | 0.51±0.02 | 35.88±0.56 | 5.64±0.05 | 9.07±0.08A | 5.55±0.07A | 2.31±0.06 | 3.18±0.13 | 2.15±0.07a | 2.39±0.04 | 3.99±0.03 | 2.76±0.07 | 2.58±0.11 |
| CT | 370.05±9.93B | 325.69±20.74 | 0.54±0.03 | 37.44±1.08 | 5.71±0.10 | 9.31±0.16A | 6.02±0.14B | 2.48±0.12 | 3.27±0.26 | 2.00±0.13ab | 2.58±0.08 | 4.03±0.06 | 2.80±0.13 | 2.63±0.21 | |
| TT | 425.80±38.44AB | 418.60±80.33 | 0.61±0.13 | 42.70±4.16 | 5.50±0.40 | 11.00±0.60B | 6.25±0.53AB | 2.25±0.47 | 1.00±0.99 | 1.00±0.49b | 3.00±0.32 | 4.00±0.22 | 2.00±0.51 | 1.00±0.82 | |
| p value | <0.01 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.01 | >0.05 | >0.05 | <0.05 | <0.05 | >0.05 | >0.05 | >0.05 | |
| SNP6 | CC | 351.15±6.69 | 317.36±13.65 | 0.54±0.02 | 36.09±0.71 | 5.61±0.07 | 9.16±0.10 | 5.60±0.09 | 2.28±0.08 | 3.28±0.17 | 2.13±0.08 | 2.39±0.05A | 4.00±0.04 | 2.79±0.09 | 2.65±0.14 |
| CT | 346.36±7.22 | 292.45±14.72 | 0.50±0.02 | 36.59±0.77 | 5.68±0.07 | 9.16±0.11 | 5.72±0.10 | 2.45±0.09 | 3.08±0.18 | 2.03±0.09 | 2.43±0.06A | 4.00±0.04 | 2.79±0.09 | 2.52±0.15 | |
| TT | 352.87±18.79 | 308.16±38.33 | 0.51±0.06 | 36.77±2.00 | 5.80±0.19 | 9.00±0.29 | 5.83±0.26 | 2.24±0.22 | 2.78±0.48 | 2.38±0.23 | 2.89±0.15AB | 4.00±0.11 | 2.33±0.24 | 2.11±0.39 | |
| p value | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.01 | >0.05 | >0.05 | >0.05 | |
| SNP7 | AA | 348.35±7.38 | 314.66±15.11 | 0.54±0.02 | 35.88±0.78 | 5.61±0.08 | 9.12±0.12 | 5.61±0.10 | 2.29±0.09 | 3.36±0.19 | 2.12±0.08 | 2.38±0.05A | 4.00±0.04 | 2.78±0.09 | 2.72±0.15 |
| AG | 349.19±6.77 | 301.62±13.86 | 0.51±0.02 | 36.79±0.72 | 5.68±0.07 | 9.22±0.11 | 5.69±0.09 | 2.42±0.08 | 3.13±0.17 | 2.03±0.09 | 2.43±0.06B | 4.00±0.04 | 2.79±0.09 | 2.55±0.14 | |
| GG | 353.53±14.52 | 296.24±29.72 | 0.49±0.05 | 36.01±1.54 | 5.71±0.15 | 8.97±0.23 | 5.73±0.20 | 2.25±0.17 | 2.60±0.36 | 2.49±0.25 | 2.96±0.16B | 4.00±0.11 | 2.38±0.26 | 2.11±0.39 | |
| p value | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.01 | >0.05 | >0.05 | >0.05 | |
| SNP9 | TT | 350.18±6.65 | 316.78±13.56 | 0.54±0.02 | 35.96±0.71 | 5.59±0.07 | 9.16±0.10 | 5.59±0.09 | 2.27±0.08 | 3.28±0.17 | 2.15±0.07a | 2.39±0.04 | 3.99±0.03 | 2.76±0.07 | 2.65±0.14 |
| CT | 347.25±7.22 | 293.33±14.73 | 0.50±0.02 | 36.81±0.77 | 5.71±0.07 | 9.18±0.11 | 5.73±0.10 | 2.45±0.09 | 3.08±0.18 | 2.00±0.13ab | 2.58±0.08 | 4.03±0.06 | 2.80±0.13 | 2.51±0.15 | |
| CC | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | |
| p value | 0.9133 | 0.5055 | 0.5052 | 0.7190 | 0.4342 | 0.7683 | 0.4121 | 0.2867 | 0.5147 | <0.05 | <0.05 | 0.8089 | 0.3202 | 0.4334 | |
| SNP10 | AA | 344.07 ±8.38 | 302.29 ±17.40 | 0.59 ±0.14a | 36.59 ±0.89 | 5.75 ±0.09 | 9.06 ±0.13 | 5.63 ±0.12 | 2.38 ±0.10 | 2.93±0.44 | 1.92 ±0.32a | 2.39 ±0.07 | 4.05 ±0.05 | 2.63 ±0.23 | 2.42±0.61 |
| AG | 347.08 ±6.55 | 306.81 ±13.60 | 0.76 ±0.13b | 35.98 ±0.69 | 5.58 ±0.07 | 9.17 ±0.10 | 5.63 ±0.09 | 2.31 ±0.08 | 2.74 ±0.41 | 2.48 ±0.30b | 2.43 ±0.05 | 3.97 ±0.04 | 2.55 ±0.22 | 2.99±0.58 | |
| GG | 360.46 ±11.35 | 304.43 ±23.56 | 0.56 ±0.19ab | 36.43 ±1.20 | 5.68 ±0.12 | 9.17 ±0.17 | 5.80 ±0.16 | 2.41 ±0.14 | 2.22 ±0.59 | 2.00±0.43ab | 2.53 ±0.09 | 4.00 ±0.06 | 2.52 ±0.32 | 1.74±0.83 | |
| p value | >0.05 | >0.05 | <0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.05 | >0.05 | >0.05 | >0.05 | <0.05 | |
| SNP15 | CC | 351.85±5.90 | 294.37±12.14 | 0.49±0.02 | 35.99±0.62 | 5.63±0.06 | 9.11±0.09 | 5.63±0.08 | 2.28±0.07 | 3.20±0.15 | 2.24±0.07 | 2.40±0.05 | 4.03±0.03 | 2.88±0.07A | 2.60±0.12 |
| CT | 341.48±8.48 | 327.20±17.46 | 0.56±0.03 | 36.28±0.89 | 5.63±0.09 | 9.18±0.13 | 5.69±0.12 | 2.56±0.10 | 3.35±0.21 | 1.93±0.10 | 2.46±0.07 | 3.93±0.05 | 2.72±0.11A | 2.65±0.18 | |
| TT | 353.98±19.67 | 309.73±40.49 | 0.54±0.07 | 39.39±2.06 | 5.96±0.20 | 9.31±0.30 | 5.81±0.27 | 2.08±0.23 | 2.38±0.49 | 1.69±0.24 | 2.63±0.16 | 4.00±0.11 | 1.88±0.24B | 2.13±0.41 | |
| p value | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.05 | >0.05 | >0.05 | >0.05 | >0.05 | <0.01 | >0.05 |
SNP, single nucleotide polymorphism; LSM, least squares means; SE, standard error; CW, Carcass weight; CCW, chilled carcass weight; DP, dressing percentage; RA, rib-eye area; RW, rib-eye width; RL, rib-eye length; FT, flank thickness; CT, chuck short rib thickness; CS, chuck short rib score; BFT, back-fat thickness; CF, chuck flap weight; FCS, fat color score; LCS, lean meat color score; MS, marbling score.
*
The Bonferroni t test was used for pair comparison in the study.
a,b
Means within a column with no common superscript letters differ at p<0.05.
A,B
Means within a column with no common superscript letters differ at p<0.01.