| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2011: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2009: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
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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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