| Project/Area Number |
15K07291
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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 | Hiroshima University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
草場 信 広島大学, 理学研究科, 教授 (20370653)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 栽培ギク育種 / 自家和合性 / キクタニギク / Chrysanthemum |
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| Outline of Final Research Achievements |
Self-incompatibility cultivated-mums are difficult to leave a large amount of offspring after the F2 generation, so modern breeding of cultivated-mums using self-compatible line has been delayed. In order to solve this problem, we introduced self-compatible gene newly discovered from the wild population of diploid chrysanthemum into a hexaploid cultivated mum and segregated 115 lines with various traits from new tetraploid mums that propagate on self-compatibility. Peripheral flowers with spoon-like tip and tubular base of the cultivated mum was selected as a candidate trait, and genetic segregation was examined for this trait of tetraploid F1, BC1F1, BC2F1, BC2F2 and BC2F3 progeny. As estimated theoretically, in the BC2F3 generation, a recessive homozygote with complete tubular ray florets that breeds with self-compatible seeds was isolated.
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