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Plant Gene and Trait 2012, Vol.3, No.7, 34
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42
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39
Table 4 Results of QTLs controlling LL, LW, and PW on AFLP linkage of maternal parent
Phalaenopsis
Traits
QTLs
Linkage groups
Position
Marker interval
LOD value
R2
LL
qll
-
1
-
1
FLG
-
1
131.2
FP10
-
M11
-
1200~FP6
-
M12
-
230
8.21
70.7
qll
-
1
-
2
FLG
-
1
132.8
FP6
-
M12
-
230~FP10
-
M10
-
700
4.30
70.6
qll
-
2
-
3
FLG
-
2
91.0~97.0
FP3
-
M3
-
600~FP2
-
M24
-
1050
9.22
76.2
qll
-
2
-
4
FLG
-
2
98.6~99.6
FP2
-
M24
-
1050~FP12
-
M37
-
580
7.89
76.3
qll
-
2
-
5
FLG
-
2
129.7~132.7
FP2
-
M3
-
475~FP11
-
M16
-
1000
5.55
70.9
qll
-
2
-
6
FLG
-
2
137.6
FP11
-
M16
-
1000~FP11
-
M10
-
450
4.14
66.0
qll
-
3
-
7
FLG
-
3
0.0~36.9
FP6
-
M11
-
380~MFP1
-
M22
-
210
9.24
60.3
qll
-
3
-
8
FLG
-
3
54.5~58.5
FP6
-
M11
-
380~MFP12
-
M38
-
500
3.92
57.7
qll
-
6
-
9
FLG
-
6
1.0~13.0
FP1
-
M11
-
420~MFP2
-
M34
-
650
8.57
71.6
qll
-
9
-
10
FLG
-
9
29.3~31.3
MFP11
-
M11
-
750~MFP2
-
M10
-
500
5.28
71.1
LW
qLW
-
1
-
1
FLG
-
1
117.1
FP2
-
M10
-
450~MFP1
-
M17
-
450
4.23
59.6
qLW
-
1
-
2
FLG
-
1
117.9
FP1
-
M17
-
1000
4.85
61.3
qLW
-
1
-
3
FLG
-
1
123.8
FP6
-
M36
-
680~FP11
-
M8
-
480
3.11
57.8
qLW
-
3
-
4
FLG
-
3
8.0~15.0
MFP1
-
M22
-
210~MFP2
-
M38
-
500
3.89
67.3
qLW
-
3
-
5
FLG
-
3
20.0~24.0
MFP2
-
M38
-
500~FP1
-
M9
-
1200
4.83
58.7
qLW
-
3
-
6
FLG
-
3
46.9~48.9
FP1
-
M9-1200~FP6
-
M11
-
380
4.26
66.9
qLW
-
6
-
7
FLG
-
6
0.0~12.0
FP1
-
M11
-
420~MFP2
-
M34
-
650
7.62
69.3
qLW
-
6
-
8
FLG
-
6
17.2~44.5
MFP2
-
M34
-
650~FP13
-
M3
-
1300
6.95
65.9
PW
qPW
-
1
-
1
FLG
-
1
115.4
FP11
-
M13
-
420~FP2
-
M10
-
450
5.47
65.5
qPW
-
1
-
2
FLG
-
1
117.1
FP2
-
M10
-
450~MFP1
-
M17
-
450
4.63
57.8
qPW
-
1
-
3
FLG
-
1
117.9
FP1
-
M17
-
1000
3.96
56.3
qPW-1
-
4
FLG
-
1
126.2~127.2
FP12
-
M38
-
200~FP1
-
M19
-
340
5.27
57.8
qPW
-
1
-
5
FLG
-
1
135.0~136.0
FP2
-
M3
-
1300~FP2
-
M17
-
225
4.24
59.1
qPW
-
2
-
6
FLG
-
2
102.1~103.1
FP5
-
M10
-
880~FP6
-
M37
-
420
4.49
63.2
qPW
-
2
-
7
FLG
-
2
121.0~123.0
FP6
-
M37
-
500~FP5
-
M32
-
600
3.76
59.1
qPW
-
3
-
8
FLG
-
3
20.0~24.0
MFP2
-
M38
-
500~FP1
-
M9
-
1200
3.96
59.0
qPW
-
6
-
9
FLG
-
6
3.0~16.0
FP1
-
M11
-
420~MFP2
-
M34
-
650
6.29
68.5
qPW
-
6
-
10
FLG
-
6
17.2~18.2
MFP2
-
M34
-
650~FP1
-
M6
-
240
6.06
68.2
in nature. There is significant correlation between LL
and PW, QTLs of the two traits have overlapped in
the linkage groups of MLG
-
1, MLG
-
2, MLG
-
3,
MLG
-
8, MLG
-
9, FLG
-
3 and FLG
-
6, which showed
the genes or loci controlling the relevant traits tended
to aggregate on the same linkage group or on an
adjacent region of linkage groups. The phenomenon
may demonstrate the regulation with pleiotropy effect
or multigenic effect.
There are more genes controlling leaf traits in the
paternal parent linkage groups than that in the
maternal parent linkage groups by this QTL analysis.
A total of 60 QTLs were detected in the paternaparent
genetic map, while 28 QTLs were detected in the
maternal parent genetic map. There are a clear
separation and a significant reduction in variability
in the phenotypic values of LL, LW, PW hybrid
population. However, whether it was also easy to affect
by paternal parent or showed more paternal parent
leaves traits, this need noteworthy and deep analysis.