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| 文献 | ||
|---|---|---|
| 著者 | Roychowdhury M., Jia Y., Jia M.H., Fjellstrom R., Cartwright R.D. | |
| タイトル | Identification of the rice blast resistance gene Pib in the National Small Grains Collection. | |
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Abstract: The Pib gene in rice confers resistance to a wide range of races of the rice blast pathogen, Magnaporthe oryzae, including race IE1k that overcomes Pita, another broad-spectrum resistance gene. In this study, the presence of Pib was determined in 164 rice germplasm accessions from a core subset of the National Small Grains Collection utilizing DNA markers and pathogenicity assays. The presence of Pib was evaluated with two simple sequence repeat (SSR) markers and a dominant marker (Pib-dom) derived from the Pib gene sequence. Pathogenicity assays using two avirulent races (IE1k and IB1) and a virulent race (IB54) were performed to verify the resistance responses of accessions. Of the 164 accessions evaluated, 109 contained the Pib gene as determined using both SSR markers and pathogenicity assays, albeit different haplotypes were detected. The remaining 52 germplasm accessions were different in their responses to the blast races IB54, IE1k, and IB1, thus indicating the presence of R gene(s) other than Pib. The accessions characterized in this study could be used for marker-assisted breeding to improve blast resistance in indica and japonica cultivars worldwide. |
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| 掲載誌 | Phytopathology | |
| Country | USA | |
| 刊数 | 102(7) | |
| ページ | 700-6 | |
| 発刊年 | 2012 | |
| PubMed ID | 22667447 | |
| PubMed Central ID | - | |
| DOI | - | |
| URL | - | |
| 関連情報 | ||
| 遺伝子 | PIB | |
| 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 | - | |
