Study on inbreeding degeneration in Japanese pear by using S2 progeny originated from Osa Nijisseiki having self-compatibility
| Project/Area Number |
23658023
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Horticulture/Landscape architecture
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| Research Institution | Ibaraki University |
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Principal Investigator |
INOUE Eiichi 茨城大学, 農学部, 准教授 (90292482)
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| Research Collaborator |
KASUMI Masakazu 茨城県農業総合センター, 生物工学研究所, 室長(協力時)
GONAI Takeru 茨城県農業総合センター, 生物工学研究所, 主任研究員(協力時)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2013: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | ニホンナシ / 自家和合性 / SSRマーカー / 近交弱勢 / ホモ化 / 劣性形質 / 自殖系統 / ゲノム / 自殖弱勢 / 相転換 / 自殖 / なし中間母本農1号 / S2世代 / おさ二十世紀 |
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| Research Abstract |
Almost all fruits trees including Japanese pear have self-incompatibility. In this research, to study inbreeding degeneration, we produced self-pollinated progeny of Japanese pear by using self-compatible cultivar Osa Nijisseiki. The negative correlation observed between the homo-zygosity and plant height in S2 individuals reflected a negative effect of the homogeneity on their growth. This S2 progeny may become valuable material for the genomic research about the inbreeding degeneration in Japanese pear.
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Report
(4 results)
Research Products
(10 results)
