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| 文献 | ||
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| 著者 | Chen J., Li X., Cheng C., Wang Y., Qin M., Zhu H., Zeng R., Fu X., Liu Z., Zhang G. | |
| タイトル | Characterization of epistatic interaction of QTLs LH8 and EH3 controlling heading date in rice. | |
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Abstract: heading date is a critical trait for adaptation of rice to different cultivation areas and cropping seasons. We evaluated the heading dates of 1,123 chromosome segments substitution lines (CSSLs) in the genetic background of an elite rice variety Huajingxian74 (HJX74). A CSSL with the substituted segments from Zihui100 exhibited late heading under both natural long-day (NLD) and natural short-day (NSD) conditions, and the late heading phenotype was controlled by two novel epistatic loci on chromosome 8 and chromosome 3, respectively, termed LH8 and EH3. The function of EH3 was dependent on the LH8 genotype through epistatic interaction between EH3(Zihui100) and LH8(Zihui100) alleles. Genetic and molecular characterization revealed LH8 encodes a CCAAT-box-binding transcription factor with Heading date1 (Hd1)-binding activity and may delay flowering by repressing the expression of Early Heading date1 (Ehd1). Our work provides a solid foundation for further study on gene interaction in heading date and has application in breeding rice with greater adaptability. |
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| 掲載誌 | Sci Rep | |
| Country | China | |
| 刊数 | 4 | |
| ページ | 4263 | |
| 発刊年 | 2014 | |
| PubMed ID | 24584028 | |
| PubMed Central ID | 3939452 | |
| DOI | 10.1038/srep04263 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | EF1 HD5 SE1 | |
| INSD | - | |
| 系統 |
野生イネ コアコレクション |
- |
| 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 | - | |
