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. 2012 Nov 8;13:101. doi: 10.1186/1471-2156-13-101

Table 1.

Perennial ryegrass QTLs classified by trait class

Trait class
Trait sub-class
Number of QTL
    LG1 LG2 LG3 LG4 LG5 LG6 LG7 Total
Morphological
Plant mass
5
8
10
8
5
2
6
44
 
Plant height/type
4
3
3
4
1
0
5
20
 
Leaf/pseudostem
13
7
17
15
3
5
8
68
 
Panicle/flower
5
11
7
13
4
3
3
46
 
Root
2
1
1
2
0
0
0
6
 
Seed
2
0
1
1
0
0
1
5
Physiological
Heading date
1
4
4
8
2
3
9
31
 
Growth
6
4
9
7
5
6
3
40
 
Fertility
3
2
0
1
0
0
3
9
 
Protein content
3
8
3
3
2
0
1
20
 
Carbohydrate content
6
3
3
1
2
7
3
25
 
Fibre content
14
9
6
0
5
10
16
60
 
Alkaloid
8
3
0
10
2
0
4
27
 
Other/unknown content
16
13
2
11
0
0
8
50
 
Digestibility
0
0
3
1
0
0
2
6
 
Other
0
0
0
2
0
0
0
2
Resistance-Tolerance
Hydrate/dehydrate stress
8
0
8
2
5
4
0
27
 
Cold stress
2
3
5
6
10
0
0
26
 
Crown rust resistance
4
5
4
4
3
2
5
27
 
Stem rust resistance
3
0
0
0
0
2
4
9
 
Grey leaf spot resistance
0
1
3
1
0
2
0
7
 
Powdery mildew resistance
0
0
1
0
0
0
2
3
 
Wiltiness
1
1
0
0
0
0
0
2
Total   106 86 90 100 49 46 83 560