2015 Fiscal Year Final Research Report
Analysis of rice genes involved in RNA silencing and response to virus
| Project/Area Number |
24580065
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Plant pathology
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| Research Institution | Ehime University |
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Principal Investigator |
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| Project Period (FY) |
2012-04-01 – 2016-03-31
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| Keywords | RNAサイレンシング / イネ / 防御 / イネえそモザイクウイルス / キュウリモザイクウイルス / DNA損傷 / 小分子RNA / 感染応答 |
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| Outline of Final Research Achievements |
Defense gens including lipoxygenase were proven to be down-regulated in an OsRDR1 mutant by rice 44K microarray. Using rice mutants and overexpressed lines, response to infection with virus, bacterial and fungal pathogens were analyzed. All mutants of OsRDR1, OsRDR6 and OsSGS3 were found to be more sensitive to pathogen infection, respectively, than wild type while the overexpressed lines of OsRDR1 or OSSGS3 showed resistance. DNA damaging stress induced rice to produce DNA damage specific small RNAs. Both OsRDR1 and OsRecQ1 were elucidated to be involved in this small RNA biogenesis.
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| Free Research Field |
分子生物資源学
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