Update info.Tools - Reference - Detail
Reference Detail
| Reference | ||
|---|---|---|
| Author | Freeg H.A., Attia K.A., Casson S., Fiaz S., Ramadan E.A., Banna A.E., Zoulias N., Aboshosha A., Alamery S. | |
| Title | Physio-biochemical responses and expressional profiling analysis of drought tolerant genes in new promising rice genotype. | |
|
Abstract: Rice cultivation in Egypt is limited by the scarcity of water resources. The main strategy of rice breeders to overcome this problem is to develop new high-yielding varieties that are tolerant to drought stress. In this study, an drought-tolerant (IR60080-46A) variety was crossed with commercial Egyptian varieties using the back-cross method and marker-assisted selection (MAS) approach. The advanced lines of these crosses were selected under drought stress conditions. The best-performing candidate line, RBL-112, and its parental genotypes, were evaluated under drought stress and control conditions. The RBL-112 line showed superior its root system, which in turn produced higher grain yield under drought-stress conditions than its parental and check genotypes. Furthermore, physiological and biochemical studies showed that the RBL-112 line maintained higher relative water content (RWC), maximum quantum efficiency of photosystem II (Fv/Fm) values, proline content, superoxide dismutase (SOD) activity, and lower malondialdehyde (MDA) content compared to its parents and the check. The functional expression profiles of 22 drought tolerance-related genes were studied, out of which the genes OsAHL1, OsLEA3, OsCATA, OsP5CS, OsSNAC1, Os1g64660, OsRab21, OsAPX2, OsDREB2A, OsSKIPa, and OsLG3 were strongly induced in the newly developed RBL-112 line under drought-stress conditions. It could be concluded that the new line has a higher capacity to modulate physiological activities and expression levels of several drought-induced genes to withstand drought stress with high yielding ability. This finding suggests that the RBL-112 line presents a promising new addition to enable sustainable rice cultivation under water-limited conditions, and confirms the efficiency of the approach implemented in the current study. |
||
| Journal | PLoS ONE | |
| Country | UK | |
| Volume | 17(3) | |
| Pages | e0266087 | |
| Year | 2022 | |
| PubMed ID | 35349595 | |
| PubMed Central ID | 8963560 | |
| DOI | 10.1371/journal.pone.0266087 | |
| URL | - | |
| Relation | ||
| Gene | AHL1 APX1 ASNASE2 BZIP23 C CATA CDPK4 CDPK7 DREB1A DREB1C DREB2A ERF41 ERF42 HSP101 LEA3-1 LG3 MOC2 ONAC2 P5CS RAB16A SKIPA WRKY13 | |
| INSD | - | |
| Strain | Wild Core Collection | - |
| Induced Mutation Lines(NIG Collection) | - | |
| Sterile Seed Strain | - | |
|
Lethal Embryo Mutantion Strain |
- | |
|
Stages in Each Organ - Muant Lines (Gene) |
- | |
| Cultivated Varieties(NIG Collection) | - | |
| Stages in Each Organ | - | |
