| Project/Area Number |
24580040
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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 |
Horticulture/Landscape architecture
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| Research Institution | Aichi University of Education |
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Principal Investigator |
KATO Juntaro 愛知教育大学, 教育学部, 准教授 (80303684)
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| Co-Investigator(Kenkyū-buntansha) |
GODO Toshinari 公益財団法人花と緑の銀行, 中央植物園部, 企画情報課長 (00393108)
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| Co-Investigator(Renkei-kenkyūsha) |
NAKATA Masashi 公益財団法人花と緑の銀行, 中央植物園部, 園長 (40150859)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2013: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Keywords | 非還元性配偶子 / 異数性配偶子 / 三倍体 / 3倍体 / ３倍体 |
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| Outline of Final Research Achievements |
Though triploid natures is better than diploid one in ornamental plant, occurrence mechanism of triploids is not known in detail.
In two 2x-2x cross combinations that could produce mainly triploids, unreduced gamete forming pattern were investigated by SSR markers. It was suggested that the unreduced gamete of allo-diploids, which have two different genomes, were formed via inhibition of meiosis I. However, it was also suggested that the unreduced gamete of auto-diploid, which have two same genomes, were formed via inhibition of meiosis II.
High pollen fertility could be detected from three plants with diploid chromosome numbers obtained from the crosses using the triploid Lychnis senno as parents. However, weak growth were shown from three seedlings obtained from the cross of Lycoris radiata used as maternal.
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