2016 Fiscal Year Final Research Report
Analysis of embryo facing endosperm region regulating embryo-endosperm ratio of albuminous seed in rice
| Project/Area Number |
25712001
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Partial Multi-year Fund |
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| Research Field |
Science in genetics and breeding
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| Research Institution | The University of Tokyo |
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Principal Investigator |
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Keywords | イネ / 胚発生 / 胚乳発生 / 細胞死 / 胚サイズ / 有胚乳種子 |
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| Outline of Final Research Achievements |
I have been previously found that the embryo facing endosperm region (EFR) is important for proper embryo-endosperm ratio of albuminous seed in rice. This study investigated the molecular mechanisms for developmental process of EFR, which was divided into three developmental phases (initiation, maintenance and regional determination). I performed the cytological characterization of EFR in 2-4 days after pollination, the cloning of EML1 gene involved in the initiation phase, RE3 gene involved in the maintenance phase and HER gene act downstream of GE gene to influence the regional determination. I inferred from these results that the oxygen sensing and auxin signaling molecules might be involved in the organization of EFR in rice.
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| Free Research Field |
植物分子遺伝学
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