Table 2.
Summary of the QTL for ASI detected in bi-parental populations
| Population code |
Water stressed |
Well watered |
Heritability |
Genetic variance per QTL** |
||||
|---|---|---|---|---|---|---|---|---|
| No. of QTL | R2 (%)* | No. of QTL | R2 (%)* | Water stressed | Well watered | Water stressed | Well watered | |
| 6x1008 |
3 |
13.40 |
3 |
21.80 |
0.27 |
0.40 |
16.54 |
18.17 |
| 6x1015 |
- |
- |
4 |
26.10 |
0.00 |
0.21 |
0.00 |
31.07 |
| 6x1016 |
1 |
1.80 |
1 |
4.70 |
0.13 |
0.36 |
13.85 |
13.06 |
| 6x1017 |
1 |
8.20 |
1 |
12.30 |
0.19 |
0.41 |
43.16 |
30.00 |
| 6x1018 |
- |
- |
- |
- |
0.00 |
0.08 |
0.00 |
0.00 |
| 6x1019 |
0 |
0.00 |
2 |
14.40 |
0.03 |
0.33 |
0.00 |
21.82 |
| 6x1020 |
5 |
30.60 |
4 |
28.40 |
0.26 |
0.33 |
23.54 |
21.52 |
| 6x1021 |
2 |
5.40 |
4 |
17.20 |
0.20 |
0.34 |
13.50 |
12.65 |
| 6x1023 |
3 |
18.20 |
5 |
44.30 |
0.29 |
0.45 |
20.92 |
19.69 |
| 6x1024 |
- |
- |
5 |
19.80 |
0.05 |
0.51 |
0.00 |
7.76 |
| 6x1028 |
6 |
23.20 |
5 |
43.20 |
0.23 |
0.37 |
16.81 |
23.35 |
| 6x1115 |
- |
- |
- |
- |
- |
- |
- |
- |
| 6x1116 |
- |
- |
7 |
38.70 |
0.00 |
0.46 |
0.00 |
12.02 |
| 6x1117 |
3 |
16.70 |
0 |
0.00 |
0.14 |
0.24 |
39.76 |
0.00 |
| 6x1118 |
- |
- |
0 |
0.00 |
0.00 |
0.23 |
0.00 |
0.00 |
| 6x1120 |
3 |
17.20 |
3 |
17.10 |
0.21 |
0.47 |
27.30 |
12.13 |
| 6x1121 |
2 |
12.90 |
0 |
0.00 |
0.37 |
0.54 |
17.43 |
0.00 |
| 6x1122 |
4 |
16.60 |
5 |
40.80 |
0.24 |
0.42 |
17.29 |
19.43 |
| Total |
33.00 |
164.20 |
49.00 |
328.80 |
2.61 |
6.15 |
250.10 |
242.65 |
| Mean | 2.75 | 13.68 | 3.06 | 20.55 | 0.15 | 0.36 | 14.71 | 14.27 |
*R2 = the total phenotypic variance explained by all QTL.
** The genetic variance is the percent phenotypic variance explained by a single QTL divided by heritability of a trait.
Maize populations and environments are described in detail in Table 3.