2019 Fiscal Year Final Research Report
Mechanisms of growth phase change from reproductive to vegetative in perennial plants
| Project/Area Number |
17K15220
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Horticultural science
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| Research Institution | Utsunomiya University |
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Principal Investigator |
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| Project Period (FY) |
2017-04-01 – 2020-03-31
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| Keywords | 多年生 / Fragaria / 野生種イチゴ |
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| Outline of Final Research Achievements |
Current flowering research has focused on "How flower initiation takes place" but not "How perennial plants resume vegetative growth after flower formation", so genetic mechanisms to determine the flowering period is not clarified.
In this study, wild strawberry was used as a model of perennial plant and genetic locus and gene(s) were analysed.
As a result, we found that multiple genes were involved in the determination of flowering period and that a gene to repress the flower formation plays an important role to regulate the process.
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| Free Research Field |
園芸学
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| Academic Significance and Societal Importance of the Research Achievements |
これまでの花成に関する研究は「花芽ができる」ことについての研究が主であり，多年生植物で行われる「花芽の形成が終わり，再び成長を再開する」ことに関する研究事例は少なく，真の意味で多年生を理解することにはつながっていなかった．
本研究により，多年生植物の生長再開のメカニズムの一端が明らかにされたとともに，実用植物（イチゴ）に近いモデルで研究が行われたことから，実用作物においても収穫期を延長するなどの応用が期待される．
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