2022 Fiscal Year Final Research Report
Mechanism of flower pigmentation specific to cyclamen and its effects on the flower coloration
| Project/Area Number |
20K06034
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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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| Review Section |
Basic Section 39030:Horticultural science-related
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| Research Institution | Kagawa University |
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Principal Investigator |
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| Project Period (FY) |
2020-04-01 – 2023-03-31
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| Keywords | シクラメン / 花色 / 花色素 / アントシアニン / カルコノナリンゲニン2’-グルコシド / ペオニジン3-ネオヘスペリドシド / マルビジン3-グルコシド |
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| Outline of Final Research Achievements |
Reddish-purple and yellow cells in the petal epidermis of apricot-flowered cyclamen indicated mixed distribution, giving the apricot color.
The results of this study suggested peonidin 3-O-neohesperidoside (Pn3Nh) accumulation，peculiar to the petals of red-flowered cyclamen, should be a dominant characteristic, and the characteristic might be controlled by a single dominant gene. It was also suggested that the rhamnosylation enzyme had substrate specificity. Deep red-purple and Dark-red flowered mutants, derived from a red-flowered cultivar ‘Largo’, accumulated malvidin 3-O-glucoside in the petals instead of Pn3Nh.
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| Free Research Field |
園芸科学
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の成果は，シクラメンのアプリコット色花品種の育成に寄与するだけでなく，カルコンを花色素として含有する花きの育種に有用な知見である．また，シクラメン特有のネオヘスペリド型アントシアニンの遺伝性や配糖体酵素の基質特異性，および赤色花品種からの特異的な変異体の花色素構成の解明は，シクラメンの花色育種だけではなく，花き全体の花色育種の進展に貢献できるものと期待できる．
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