| Project/Area Number |
15K07283
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Horticultural science
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| Research Institution | Yamagata University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
松本 大生 山形大学, 農学部, 助教 (30632129)
池田 和生 山形大学, 農学部, 准教授 (80555269)
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| Project Period (FY) |
2015-04-01 – 2019-03-31
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| Project Status |
Completed (Fiscal Year 2018)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2017: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2016: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2015: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | アケビ属 / 自家不和合性 / 交雑（不）和合 / ミツバアケビ / 後発型自家不和合性 / EST-SSR / 混合受粉 / 交配和合性 |
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| Outline of Final Research Achievements |
To elucidate effects of the self-incompatibility on the fruit production in three-leaf akebia species, a series of pollination test was conducted. The pollen tubes was observed to reach to the vicinity of ovules in self-pollinated pistils, indicating that three-leaf akebia exhibits the late-acting self-incompatibility. The cross-(in)compatibility among 6 cultivated akebia lines was tested. All of 6 lines were self-incompatible, and several crosses were incompatible. Mixed pollination containing self-pollen more than 25% resulted in less fruit-set.
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| Academic Significance and Societal Importance of the Research Achievements |
ミツバアケビ栽培系統間の交雑（不）和合性はこれまで調査されていなかったが、本研究によって初めて明らかにされた。また、人工受粉および自然受粉時の着果率を調査することで、ミツバアケビ生産における人工受粉の重要性を改めて示した。加えて、受粉時の自家花粉の混入が着果を阻害することを示した。これらの成果は、ミツバアケビの受粉管理を確立するうえでの重要な知見となると考えられる。
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