| Project/Area Number |
23658005
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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 |
Breeding science
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| Research Institution | The University of Tokyo |
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Principal Investigator |
NAGATO Yasuo 東京大学, 大学院・農学生命科学研究科, 教授 (10143413)
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| Co-Investigator(Kenkyū-buntansha) |
HIBARA Ken-ichirou 東京大学, 大学院・農学生命科学研究科, 助教 (10595713)
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2011: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | イネ / PPS遺伝子 / juvenile-adult相転換 / PRECOCIOUS遺伝子 / COP1遺伝 / PRE遺伝子 / MORI1遺伝子 / COP1遺伝子 |
|---|
| Research Abstract |
Causal gene of pps mutant showing elongated juvenile phase was revealed to encode an ortholog of Arabidopsis COP1. Since COP1 is not associated with juvenile-adult phase change, rice PPS has acquired a novel function during evolution. Juvenile phase of pre mutant is shortened. PRE encodes an enzyme involved in jasmonate biosynthesis. We also isolated MORI1 gene. In addition, japonica and indica groups were revealed to have diversified in the timing of juvenile-adult phase change.
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