2011 Fiscal Year Final Research Report
Comparative analysis of homologs of a rice blast resistance gene Pit in gramineous species
| Project/Area Number |
21780009
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Breeding science
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| Research Institution | National Agriculture and Food Research Organization |
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Principal Investigator |
HAYASHI Keiko 独立行政法人農業・食品産業技術総合研究機構, 中央農業総合研究センター病害虫研究領域, 主任研究員 (40391437)
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| Project Period (FY) |
2009 – 2011
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| Keywords | 抵抗性 / 耐性 |
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| Research Abstract |
Comparative analysis of homologs of a rice blast resistance gene Pit in gramineous species revealed that Pit coding sequences exist in not only Oryza but also Secale, Triticum, Hordeum and Lolium. Interestingly, specific sequences of susceptive-type Pit homologs in AA genome group of Oryza exhibited high homology to those of Pit homologs in BB and EE genome group of Oryza, showing that the resistant-type Pit(in some varieties of O. sativa) gene is recently evolved from the susceptive-type Pit gene. These results enabled to produce functional markers of Pit that allow for identification of the resistant-type Pit gene in rice germplasm. Such markers have a great advantage in resistance breeding because they can assess the existence of the resistance-type Pit gene without laborious inoculation tests.
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Research Products
(5 results)
