| Budget Amount *help |
¥138,450,000 (Direct Cost: ¥106,500,000、Indirect Cost: ¥31,950,000)
Fiscal Year 2015: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2014: ¥24,050,000 (Direct Cost: ¥18,500,000、Indirect Cost: ¥5,550,000)
Fiscal Year 2013: ¥25,610,000 (Direct Cost: ¥19,700,000、Indirect Cost: ¥5,910,000)
Fiscal Year 2012: ¥23,400,000 (Direct Cost: ¥18,000,000、Indirect Cost: ¥5,400,000)
Fiscal Year 2011: ¥41,340,000 (Direct Cost: ¥31,800,000、Indirect Cost: ¥9,540,000)
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| Outline of Final Research Achievements |
In plants, the endosperm is a site for hybridization barrier, where maternally- and paternally derived genomes have distinct roles for their development.
Classical studies predicted that the maternal genome represses endosperm growth and the paternal genome promote it. In this study, we conducted detailed analyses of the hybrid endosperms in interspecific or interploidy cross of rice or combination of those (Plant J. 2011, 2013, and in preparation). These analysis revealed that developmental transition under the control of Polycomb Repressive Complex 2 (PRC2) is a key determinant for this phenomena. We also identified several components for DNA demethylation that is required for activation of imprinted genes in Arabidopsis thaliana (Dev Cell 2011, New Phytologist 2013, PNAS 2014).
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