Polymorphisms in the Chicken Growth Differentiation Factor 9 Gene Associated with Reproductive Traits
Table 9
Association analysis between GDF9 diplotypes and reproductive traits.
AFE (days)
BWFE (g)
WFE (g)
BWTA (g)
EWTA (g)
EN (count)
Diplotype
D1 (CCAAAA)
166.46±1.6
1673.07±31.26
43.26±1.01
1687.3±22.2
55.66±0.66
99.38±1.9
D2 (CCAAAC)
159.35±3.1
1601.39±60.79
39.89±1.96
1627.36±43.2
55.38±1.29
107.21±3.7
D3 (CCAACC)
165.73±2.9
1753.1±56.28
40.43±1.81
1768.57±40.0
56.37±1.19
102.38±3.
D4 (CCAGAA)
160.75±3.0
1583.13±58.41
42.11±1.88
1626.67±41.
58.01±1.24
106.67±3.6
D5 (CCAGAC)
167.16±3.9
1785±75.87
41.97±2.45
1666.25±54.0
54.59±1.61
89.84±4.7
D6 (CCAGCC)
162.23±2.6
1655±51.47
40.86±1.66
1657.06±36.6
55.49±1.09
102.76±3.2
D7 (CTAAAA)
155.54±2.
1597.46±46.38
37.28±1.49
1593.77±33.0
55.05±0.98
103.91±2.8
D8 (CTAGCC)
162.19±3.6
1652.74±69.81
39.17±2.25
1626.19±49.7
56.43±1.48
99.5±4.3
P-value
0.01
0.19
0.08
0.04
0.66
0.04
Breed
LH
158.4±1.3
1982.45±18.2
45.36±0.8
1800.59±25.6
61.97±0.5
115.66±1.
DX
166.45±1.6
1330.84±22.6
35.89±1.0
1524.63±31.7
49.78±0.6
87.01±1.9
P-value
0.0002
<0.0001
<0.0001
<0.0001
<0.0001
<0.0001
D x B
P-value
0.23
0.94
0.97
0.94
0.06
0.76
N = number, F = frequency, AFE = age at first egg, BWFE = body weight at first egg, WFE = weight of first egg, BWTA = body weight at 300 days of age, EWTA = egg weight at 300 days of age, and EN = total number of eggs at 300 days of age. LH = Luhua chickens, DX = Dongxiang blue-shelled chickens. Results are expressed as least square means ± standard errors. Different letters indicate significant differences (P < 0.05).
