Page 8 - Triticeae Genomics and Genetics

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Triticeae Genomics and Genetics 2014, Vol.5, No.1, 1-6
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5
Continued Table 1
Gene effects, 6 parameters
m
83.13**
+0.29
50.27**
+0.49
72.57**
+0.49
100.67**
+1.06
80.73**
+0.75
63.67**
+0.67
(d)
1.89
+1.32
8.57
+0.92
13.00**
+0.91
20.73**
+1.81
1.40
+1.21
5.46**
+1.29
(h)
68.86
+2.97
27.15
+2.75
-
24.75**
+2.82
40.53**
+5.44
59.62**
+3.99
15.08**
+4.44
(i)
52.07
+2.89
22.20**
+2.71
15.73**
+2.69
-
23.99**
+5.42
49.59**
+3.86
14.67**
+3.72
(j)
-
8.50**
+1.37
10.08
+0.95
-
12.05**
+0.99
26.43**
+1.83
0.65
+1.50
22.88**
+1.34
(l)
-
76.80**
+5.9
2.36
+4.28
-
9.30*
+4.45
10.93
+8.34
-
74.03**
+6.04
8.23
+7.57
Type of epistasis
D
-
C
-
D
-
Scale
1000
-
grain weight (g)
A
-
8.93**
+1.33
-
13.67**
+1.58
19.47**
+1.17
-
0.67
+1.31
-
6.17**
+1.32
7.67**
+1.12
B
2.60**
+1.06
-
23.80**
+1.95
21.13**
+1.28
-
4.30**
+1.21
13.97**
+0.52
4.73**
+1.04
C
19.07**
+2.44
-
30.87**
+1.97
-
20.13**
+2.44
-
12.63*
+5.49
-
26.40**
+2.08
-
2.47**
+0.74
D
12.70**
+0.92
3.30**
+0.73
-
30.36**
+1.41
-
3.83
+2.76
-
17.10**
+1.19
30.50**
+0.21
Gene effect 6
-
parameters
m
37.47**
+0.41
30.50**
+0.06
26.13**
+0.58
32.76**
+1.33
28.77**
+0.49
30.50**
+2.21
(d)
-
1.83
+0.41
5.23**
+0.72
-
0.17
+0.80
0.89
+0.70
-
5.29**
+0.67
-
2.80**
+0.61
(h)
-
22.07**
+2.04
-
10.43
+1.75
58.99**
+2.84
11.15
+5.56
43.86**
+2.39
4.33**
+1.59
(i)
-
25.40**
+1.83
-
6.60**
+1.45
60.73**
+2.81
7.67
+5.52
34.20
+2.37
4.93**
+1.48
(j)
-
5.76**
+0.68
5.07**
+0.74
-
0.83
+0.85
1.83
+0.83
-
10.07**
+0.67
6.19**
+0.72
(l)
31.73**
+2.94
44.07**
+3.48
-
101.33**
+4.03
-
2.69
+6.17
-
41.99**
+3.37
-
2.00
+2.86
Type of epistasis
D
D
D
-
D
-
Note: *, ** = 0.05 and 0.01 respectively; D = Duplicate; C = Complementary
was more important in the inheritance of all the
characters. Additive × additive (i) epistatic effect was
more important and higher than the dominance ×
dominance (l) epistatic effect in the inheritance of no.
of effective tillers/plant in DL88 × K560, grain
yield/plant in RD 2552 × NDB1020. However,
dominance × dominance (l) epistatic effect was also
more important and higher than the additive × additive
(i), dominance × dominance (l) epistatic gene
interaction was significant and greater in magnitude
than all the gene effects (d, h, i and j) in the
inheritance no of effective tillers/plant, days to
maturity and 1000-grain weight in DL 88 × K560.
The weight of grains/main spike and1000-grain
weight was significantly higher in RD 2552 × NDB
1020. These findings are in agreement with those
reported earlier Prakash V. et al. (2005). Thus, these
characters were mainly under the control of
dominance × dominance (l) type of epistasis.
Therefore, selection for these characters would be
fruitful, if delayed till dominance and epistatic
effects are reduced to minimum.