QTL Mapping of Traits Associated with Dual Resistance to the African Stem Borer (Busseola fusca) and Spotted Stem Borer (Chilo partellus) in Sorghum (Sorghum bicolor)
Table 13
Joint analyses for QTLs common for B. fusca and C. partellus damage and morphological traits from the RIL population derived from sorghum.
Trait
QTL
Chromosome
Position (cM)
Marker and loci interval
Supp interval
LOD
Additive effects
SE
Adj
Deadheart
1
4
74
BC242-4 2342-2347
72-78
3.81
9
16.6
1.587
2
5
24
m05/023.7 2703-2679
22-26
3.31
7.6
3.3
0.981
24.8
3
10
22
CPS160-10 4619-4622
18-28
3.16
8.2
5.4
1.336
4
8
40
JK399-8 36-42
36-42
3.41
7.8
-9.5
2.758
Leaf damage
1
1
14
SB255-1 245-224
12-16
6.28
15.4
3.8
0.822
2
3
54
DB160-3 1584-1579
52-56
7.88
17.4
5.1
0.657
56
3
3
74
DB169-3 1593-1592
72-84
3.48
8.1
-2
0.646
4
6
76
EF222-6 3083-3203
72-78
3.26
7.6
3.9
1.077
5
8
48
JK290-8 3938-3944
46-52
3.24
7.6
2.2
0.705
6
7
24
GH70-7 3361-3371
22-26
3.61
8.4
-3.1
0.681
Exit holes
1
2
88
CS195-2 1016-971
86-90
3.94
9
-0.5
0.142
2
4
58
BC149-4 2249-2250
56-60
3.92
9
-0.7
0.167
47.3
3
6
4
EF255-6 3116-3143
2-6
5.14
11.7
-0.7
0.154
4
6
26
EF416-6 3277-3281
24-28
4.64
10.5
3.2
0.743
5
9
88
BF138-9 4205-4203
84-90
3
7
1.2
0.361
Stem tunneling
1
1
18
SB466_1
456-453
3.55
8.2
1.982
0.523
2
2
16
CS116-2 937-940
14-18
5.18
11.8
1.6
0.365
3
2
52
CS132-2 953-954
46-56
4.62
10.5
-1.5
0.391
4
3
20
DB36_3 1460-1524
16-24
3.34
10.1
4.4
0.618
65.5
5
4
46
BC140_4 2240-2229
42-48
6.57
14.7
3
0.631
6
9
90
BF140_9 4207-4210
88-92
4.44
10.3
-3.4
0.458
Bloom waxiness
1
3
10
DB39-3 1463-1461
2-12
4.88
19.1
0.5
0.105
27.3
2
9
42
BF97-9 4164-4168
40-46
3.52
8.2
1.2
0.201
Leaf glossiness
1
5
14
AD443-5 2838-2676
12-16
3.32
8.1
-0.7
0.220
15.2
2
7
82
GH120-7 3411-3410
80-84
3.01
7.1
-0.5
0.162
Trichome density
1
1
10
SB259-1 249-245
8-12
3.03
7.7
-6.6
1.752
40.5
2
2
122
CS380-2 1201-1205
120-124
4.66
10.4
-4.1
1.007
3
3
108
DB390-3 1814-1619
102-110
3.19
7.3
4.6
1.428
4
6
10
EF154-6 3015-3153
8-12
6.90
15.0
-7.8
1.435
Leaf toughness
1
2
56
CS133-2 954-955
54-58
3.01
7.1
0.01
0.006
41.1
2
2
138
CS402-2 1223-1224
136-140
3.23
7.7
0.03
0.011
3
4
24
BC131-4 2231-2232
22-26
3.51
8.8
-0.04
0.012
4
6
48
EF204-6 3065-3009
46-50
3.82
8.9
0.1
0.029
5
9
72
BF123-9 4190-4193
70-74
3.67
8.6
-0.1
0.025
6
10
64
m10/062.5 4638-4636
60-66
3.22
10.6
0.1
0.011
Seedling vigour
1
8
12
JK152-8 3800-3809
8-16
3.05
8.7
0.3
0.099
19.5
2
9
20
BF84-9 4151-4149
18-22
4.59
10.8
-0.9
0.076
QTL=quantitative trait loci; cM=centimorgan; Supp=supportive interval; LOD=likelihood-ratio test statistic; Position=maximum peak in cM, relative to the first locus on each chromosome; Additive effect=regression coefficient of the QTL at the specific position from the multiple regression analysis. Positive additive effects indicate that the PB 15520-1 (resistant parent) allele increased the value of the trait; SE=standard error; =coefficient of determination between the respective QTL and the phenotypic observations from the whole data set; Adj =adjusted genetic variance. Here, marker names were coded for ease of analyses, and their full names are in the supplementary material (see).
