Table 4.
List of recently mapped major QTLs for heat stress resistance in wheat.
| Trait | QTLs | Mapping Population |
Cross | Chr. | Markers | PVE (%) | References |
|---|---|---|---|---|---|---|---|
| Grain Yield | QYld.aww-1B.2 | DH | Excalibur×Kukri | 1B | adw1218477-BS00022342 | >15.0 | [153] |
| Thousand-grain weight | QTGW-2A.1 | RIL | SYN-D (Croc1/ A. squarrosa (224)/ Opata) × Weebill 1 |
2A | DArTSeq | 33.0 | [154] |
| Grain yield per plant | QGYPHS1 | DH | Hanxuan10 × Lumai 14 | 1B |
AX-111125138
AX-95194017 |
22.5 | [155] |
| Fv/Fm (maximum quantum efficiency of photosystem II) |
QHst.cph-3B.1
QHst.cph-3B.2 |
F2 | 810 (IPK-2845) × 1110(IPK-9705) | 3B | Xgpw8020-1061426s 1218388s-Xgwm389 | 22.1 25.0 |
[156] |
| Maximum Fluorescence (Fm) | QFm.cgb-4A | DH | Hanxuan 10 × Lumai 14 | 4A | Xwmc89-Xwmc420 | ~15.0 | [157] |
| Thylakoid membrane damage | QHttmd.ksu-7A | RILs | Ventnor × Karl 92 | 7A | Xbarc121-barc49 | 30.6 | [158] |
| SPAD chlorophyll content | QHtscc.ksu-7A | RILs | Ventnor × Karl 92 | 7A | Xbarc121-barc49 | 30.8 | [158] |
| Grain yield | Q.Yld.aww-3B-2 | DHs | RAC875 × Kukri | 3B | DArT and SSR | 22.0 | [159] |
| Heat susceptibility index (HSI) of 1000 grain weight | QHthsitgw.bhu-7B | RILs | NW1014 × HUW468 | 7B |
Xgwm1025
Xgwm745 |
20.3 | [63] |
| HSI of kernel number | QHknm.tam-2B | RILs | Halberd × Cutter | 2B | Gwm111.2 | 17.0 | [160] |
QTL, quantitative trait locus; DH, double haploid; RIL, recombinant inbred lines; Chr, chromosome; PVE, phenotypic variation explained.