2012 Fiscal Year Final Research Report
Formation mechanism of sperm dimorphism in higher plant
| Project/Area Number |
22780034
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | The Institute of Physical and Chemical Research |
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Principal Investigator |
HIRANO Tomonarai 独立行政法人理化学研究所, イオンビーム育種研究チーム, 研究員 (80455584)
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| Project Period (FY) |
2010 – 2012
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| Keywords | 花粉 / 雄原細胞 / 精細胞 / 遺伝子発現 / EST 解析 / 微細操作 / 重イオンビーム |
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| Research Abstract |
In Cyrtanthus mackenii, the sperm cells showed structural dimorphism, and differences in microtubule accumulation between the pair of sperm cells arose during the process of cortical microtubule reorganization. As results from EST analysis for elucidation of molecular mechanisms on the sperm dimorphism, the candidate genes with changes in expression during sperm cell formation were listed up. Male gametes irradiated heavy ion beam had a potential to use for the study of sperm cell formation. It was also revealed that the generative cells recognized and managed genomic lesions during the pollen tube growth.
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