Evo-devo study on unifacial leaves through the analysis of small RNA-controlled gene expression.
Project/Area Number |
21870042
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Research Category |
Grant-in-Aid for Research Activity Start-up
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Allocation Type | Single-year Grants |
Research Field |
Plant molecular biology/Plant physiology
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Research Institution | National Institute for Basic Biology |
Principal Investigator |
NUKAZUKA Akira National Institute for Basic Biology, 植物発生遺伝学研究部門, 特別協力研究員 (20546907)
|
Project Period (FY) |
2009 – 2010
|
Project Status |
Completed (Fiscal Year 2010)
|
Budget Amount *help |
¥2,756,000 (Direct Cost: ¥2,120,000、Indirect Cost: ¥636,000)
Fiscal Year 2010: ¥1,313,000 (Direct Cost: ¥1,010,000、Indirect Cost: ¥303,000)
Fiscal Year 2009: ¥1,443,000 (Direct Cost: ¥1,110,000、Indirect Cost: ¥333,000)
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Keywords | 植物 / 単面葉 / 発生 / 進化 / 遺伝学 |
Research Abstract |
In general, angiosperm leaves are bifacial, consisting of distinct adaxial and abaxial identities. By contrast, some monocot species develop unifacial leaves, whose leaf blades have only the abaxial side. How do unifacial leaves acquire this morphological trait? In this project, I have taken a molecular genetic approach in Juncus to unravel the mechanisms underlying this issue. Here, I demonstrate that an action of small RNA (tasiR-ARF) is misregulated in unifacial leaves, which is suggested to be causally related to their loss of adaxial identity. In addition, I have isolated multiple lines of mutants from unifacial-leafed species whose leaves are adaxialized, which can be powerful tools for forward genetic analysis in future.
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Report
(3 results)
Research Products
(7 results)