| Project/Area Number |
16K14862
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Plant protection science
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| Research Institution | Saga University |
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Principal Investigator |
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | ウイルス / 分子進化 / 共進化 / 病原体間 / 植物保護 / 混合感染 |
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| Outline of Final Research Achievements |
Plants are often mixedly infected with two or more pathogens in nature. Mixed infection of different virus species generally shows severe symptoms, whereas single infection with same virus species shows mild symptoms due to the interference effects. Focusing on these phenomena, we conducted a research aimed at elucidating "co-evolution" between different virus species. We collected crucifers and lily plants showing mosaic symptoms, infected with two or more different viruses, in Japan. We determined the two or more viral genomes from mixedly infected plants and analyzed them using the latest genome-informatics. We found that some mutations in the cruciferous and narcissus virus genomes probably involved in “co-evolution”, and some of the viruses probably co-evolved and co-migrated from the origin to other parts of Japan.
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