更新情報研究支援ツール - 文献 - 詳細
文献詳細
| 文献 | ||
|---|---|---|
| 著者 | Deng Y, Zhu X, Shen Y, He Z. | |
| タイトル | Genetic characterization and fine mapping of the blast resistance locus Pigm(t) tightly linked to Pi2 and Pi9 in a broad-spectrum resistant Chinese variety. | |
|
Abstract: The identification and utilization of broad-spectrum resistance genes have been proven the most effective and economical approach to control rice blast disease. To understand the molecular mechanism of broad-spectrum resistance to rice blast, we conducted genetic and fine mapping analysis of the blast resistance gene in a Chinese rice variety: Gumei 4 (GM4) identified with broad-spectrum resistance and used in rice breeding for blast resistance for more than 20 years. Genetic and mapping analysis indicated that blast resistance to nine isolates of different Chinese races in GM4 was controlled by the same dominant locus designated as Pigm(t) that was finely mapped to an approximately 70-kb interval between markers C5483 and C0428 on chromosome 6, which contains five candidate NBS--LRR disease resistance genes. The allelism test showed that Pigm(t) was either tightly linked or allelic to Pi2 and Pi9, two known blast resistance genes. Mapping information also indicated that another blast resistance gene Pi26(t) might also be located at the same region. Candidate genes were identified by sequence analysis of the Nipponbare and Pi9 locus and the corresponding region in GM4. Sequence divergence of candidate genes was observed between GM4 and model varieties Nipponbare and 9311, and Pi9. Our current study provides essential information and new genetic resource for the cloning of functional resistance gene(s) and for marker-assisted selection in rice breeding for broad-spectrum blast resistance. |
||
| 掲載誌 | Theor. Appl. Genet. | |
| Country | China | |
| 刊数 | 113(4) | |
| ページ | 705-13 | |
| 発刊年 | 2006 | |
| PubMed ID | 16832648 | |
| PubMed Central ID | - | |
| DOI | 10.1007/s00122-006-0338-7 | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | PI26 PI9 PIGM PIZ | |
| 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 | - | |
|
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 | - | |
