Update info.Tools - Reference - Detail
Reference Detail
| Reference | ||
|---|---|---|
| Author | Xu F., Tang J., Wang S., Cheng X., Wang H., Ou S., Gao S., Li B., Qian Y., Gao C., Chu C. | |
| Title | Antagonistic control of seed dormancy in rice by two bHLH transcription factors. | |
|
Abstract: Preharvest sprouting (PHS) due to lack of seed dormancy seriously threatens crop production worldwide. As a complex quantitative trait, breeding of crop cultivars with suitable seed dormancy is hindered by limited useful regulatory genes. Here by repeatable phenotypic characterization of fixed recombinant individuals, we report a quantitative genetic locus, seed dormancy 6 (SD6), from aus-type rice, encoding a basic helix-loop-helix (bHLH) transcription factor, which underlies the natural variation of seed dormancy. SD6 and another bHLH factor inducer of C-repeat binding factors expression 2 (ICE2) function antagonistically in controlling seed dormancy by directly regulating the ABA catabolism gene ABA8OX3, and indirectly regulating the ABA biosynthesis gene NCED2 via OsbHLH048, in a temperature-dependent manner. The weak-dormancy allele of SD6 is common in cultivated rice but undergoes negative selection in wild rice. Notably, by genome editing SD6 and its wheat homologs, we demonstrated that SD6 is a useful breeding target for alleviating PHS in cereals under field conditions. |
||
| Journal | Nat. Genet. | |
| Country | China | |
| Volume | 54(12) | |
| Pages | 1972-1982 | |
| Year | 2022 | |
| PubMed ID | 36471073 | |
| PubMed Central ID | - | |
| DOI | 10.1038/s41588-022-01240-7 | |
| URL | - | |
| Relation | ||
| Gene | ABA8OX3 BHLH48 ICE2 NCED2 SD6 | |
| 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 | - | |
