2014 Fiscal Year Final Research Report
The molecular mechanism about separation layer formation and degradation in seed shattering of rice.
| Project/Area Number |
23780006
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Breeding science
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| Research Institution | Kagawa University |
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Principal Investigator |
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| Project Period (FY) |
2011-04-28 – 2015-03-31
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| Keywords | 脱粒性 |
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| Outline of Final Research Achievements |
The rice seed shattering gene, qSH1 encodes a BEL-type homeobox gene and is required for the formation of separation layer in rice. Histological analysis revealed that the separation layer forms with one periclinal cell division at the base of rice grains around 2 weeks before heading and then lignin disposition starts at the base expect the separation layer cells around 1 week before heading. These observations strongly suggest that the seed shattering of rice has two main processes; one process is separation layer formation and the other is separation layer degradation. To elucidate the molecular process in seed shattering in rice, we carried out some systematic microarray analysis using laser capture micro-dissection (LM-microarray) of the separation layer cells.
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| Free Research Field |
分子育種学
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