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| 文献 | ||
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| 著者 | Sweeney,M.T., Thomson,M.J., Pfeil,B.E. and McCouch,S. | |
| タイトル | Caught red-handed: rc encodes a basic helix-loop-helix protein conditioning red pericarp in rice. | |
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Abstract: Rc is a domestication-related gene required for red pericarp in rice (Oryza sativa). The red grain color is ubiquitous among the wild ancestors of O. sativa, in which it is closely associated with seed shattering and dormancy. Rc encodes a basic helix-loop-helix (bHLH) protein that was fine-mapped to an 18.5-kb region on rice chromosome 7 using a cross between Oryza rufipogon (red pericarp) and O. sativa cv Jefferson (white pericarp). Sequencing of the alleles from both mapping parents as well as from two independent genetic stocks of Rc revealed that the dominant red allele differed from the recessive white allele by a 14-bp deletion within exon 6 that knocked out the bHLH domain of the protein. A premature stop codon was identified in the second mutant stock that had a light red pericarp. RT-PCR experiments confirmed that the Rc gene was expressed in both red- and white-grained rice but that a shortened transcript was present in white varieties. Phylogenetic analysis, supported by comparative mapping in rice and maize (Zea mays), showed that Rc, a positive regulator of proanthocyanidin, is orthologous with INTENSIFIER1, a negative regulator of anthocyanin production in maize, and is not in the same clade as rice bHLH anthocyanin regulators. |
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| 掲載誌 | Plant Cell | |
| Country | USA | |
| 刊数 | 18 | |
| ページ | 283-294 | |
| 発刊年 | 2006 | |
| PubMed ID | 16399804 | |
| PubMed Central ID | - | |
| DOI | 10.1105/tpc.105.038430 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | RC | |
| INSD | DQ204735 DQ204736 DQ204737 DQ204738 DQ315482 | |
| 系統 |
野生イネ コアコレクション |
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| 突然変異系統(遺伝研 Collection) | - | |
| 種子不稔系統 | - | |
| 致死変異体系統 | - | |
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組織別発生段階 - 突然変異系統(遺伝子) |
- | |
| 栽培イネ品種(遺伝研 Collection) | - | |
| 組織別発生段階 | - | |
