Table 2. Association of 2 SNPs at IGF2 gene with egg production traits in Muscovy duck.
| SNPs1 | Traits2 | Least-squares mean ± SEM 3 | P-value | ||
|---|---|---|---|---|---|
| AA(n = 204) | AG(n = 308) | GG(n = 172) | |||
| A-1864G | FEA | 276.60 ± 1.41a | 275.67 ± 1.15a | 276.77 ± 1.54a | 0.8087 |
| E59W | 75.35 ± 1.92a | 76.01 ± 1.57a | 69.18 ± 2.10b | 0.0251 | |
| E300D | 21.43 ± 1.04a | 21.91 ± 0.85a | 20.84 ± 1.14a | 0.7533 | |
| CC(n = 158) | CG(n = 310) | GG(n = 216) | |||
| C-1704G | FEA | 276.50 ± 1.61a | 276.43 ± 1.15a | 275.72 ± 1.37a | 0.9067 |
| E59W | 68.92 ± 2.19b | 75.33 ± 1.56a | 76.11 ± 1.87a | 0.0254 | |
| E300D | 20.97 ± 1.19a | 21.18 ± 0.85a | 22.33 ± 1.01a | 0.6050 | |
Notes.
Data are summarized as means ± SEM.
1
SNPs means single nucleotide polymorphisms, referred to covered regions, the first nucleotide of the translation start codon was designated +1, with the next upstream nucleotide being −1.
2
FEA, first egg age; E59W, egg number at age 59 weeks; E300D, egg number at age 300 days.
3
Values within a row with no common superscript differ significantly (P < 0.05) or are highly significant (P < 0.01).