Table 3.
QTLs for leaf rolling score, root pulling force, yield, and yield components under drought condition identified from the IR64/Cabacu population
| Traits | QTLs | Chra | Peak marker | Increased effect | LODb | R 2 (%)c | Ad |
|---|---|---|---|---|---|---|---|
| Leaf rolling score | qLRS1.1 | 1 | id1025983 | Cabacue | 3.2f | 9.1 | –0.7 |
| Root pulling force | qRPF2.1 | 2 | id2009319 | Cabacu | 3.5 | 10.0 | –2.2 |
| Yield per plant | qGY1.1 | 1 | id1023892 | IR64 | 3.2 | 9.1 | 1.5 |
| Percent seed set | qPSS8.1 | 8 | id8003838 | IR64 | 5.3 g | 14.7 | 9.2 |
| qPSS8.2 | 8 | id8005359 | IR64 | 7.7 | 20.5 | 11.3 | |
| Grains per panicle | qGPP2.1 | 2 | wd2000409 | Cabacu | 3.1 | 8.9 | –7.6 |
| qGPP8.1 | 8 | id8003838 | IR64 | 4.0 | 11.2 | 8.2 | |
| qGPP8.2 | 8 | id8005359 | IR64 | 6.0 | 16.4 | 10.8 | |
| Spikelets per panicle | qSPP4.1 | 4 | id4010621 | Cabacu | 3.7 | 10.6 | –8.7 |
| Days to heading | qDTH8.1 | 8 | id8004029 | Cabacu | 3.1 | 8.8 | –2.1 |
| qDTH10.1 | 10 | id10005538 | Cabacu | 3.9 | 11.0 | –2.7 | |
| Plant height | qPH1.1 | 1 | id1024836 | Cabacu | 16.3 | 38.6 | –12.3 |
aChromosome no
bLogarithm of odds score
cRelative contributions of the putative QTLs to the phenotypic variation
dAdditive effect. A positive or negative value indicates that the allele from IR64 or Cabacu increases the trait value, respectively
eA higher score for LRS is unfavorable (more leaf rolling)
fQTLs in regular type were identified at P < 0.05 using permutation analysis
gQTLs in bold face were identified at P < 0.01