| Project/Area Number |
20880024
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| Research Category |
Grant-in-Aid for Young Scientists (Start-up)
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| Allocation Type | Single-year Grants |
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| Research Field |
Breeding science
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| Research Institution | Osaka Prefecture University |
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Principal Investigator |
TEZUKA Takahiro Osaka Prefecture University, 生命環境科学研究科, 助教 (20508808)
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| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥3,302,000 (Direct Cost: ¥2,540,000、Indirect Cost: ¥762,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,742,000 (Direct Cost: ¥1,340,000、Indirect Cost: ¥402,000)
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| Keywords | 雑種致死 / 生殖的隔離機構 / 種間交雑 / 遠縁交雑 / 遺伝解析 / タバコ / 植物育種 / 育種学 / 遺伝学 / 生殖隔離 |
|---|
| Research Abstract |
Hybrid lethality, observed in hybrid embryos and seedlings, is obstacle to introducing desirable genes into cultivars through wide crosses. In this study, genetic analysis on hybrid lethality observed in interspecific crosses between cultivated species and wild species of tobacco was conducted. We revealed that wild species has a single gene causing hybrid lethality by three-way crosses. We also revealed whether hybrid lethality is observed in crosses of many wild species with the cultivated species.
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