ID | 66552 |
Sort Key | 11
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タイトル(別表記) | Application of grafting-induced flowering to the breeding and seed production of cruciferous crops
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フルテキストURL | |
著者 |
元木 航
応用植物科学コース
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抄録 | Grafting-induced flowering has the potential to be applied to plant breeding and seed production, to shorten the time needed for floral induction, and to expand the environment in which seed production is possible. However, it is difficult to induce flowering by grafting in some crop species, which currently limits the use of this technique to specific plant species. We have established a technique for inducing flowering in cabbage (Brassica oleracea L.) by grafting, which had hitherto been considered difficult, by clarifying the causes of different flowering responses caused by various rootstocks. This article introduces the key factors for the floral induction of cabbage by grafting and its potential application to the breeding and seed production of cruciferous crops. It was observed that cabbage grafted onto B. oleracea rootstocks did not flower at all, while cabbage grafted onto some accessions of Raphanus sativus rootstocks did flower. Furthermore, the ability of R. sativus to induce flowering of grafted cabbage varied even within the species. Immunoblotting analysis of the FLOWERING LOCUS T (FT) protein, a main component of florigen, revealed that floral induction was quantitatively correlated with the level of accumulated FT protein in the grafted scion. It was concluded that increasing the total amount of FT protein produced in the rootstock is important for the stable floral induction of the grafted cabbage, and this can be accomplished by increasing FT transcription and the leaf area of the rootstock. Field cultivation experiments with cabbage progenies obtained by the grafting method indicated the direct applicability of this method to breeding and seed production in cruciferous crops.
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キーワード | Brassica oleracea
Raphanus sativus
grafting
rapid flowering induction
florigen
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備考 | 研究紹介 (Research Report)
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出版物タイトル |
岡山大学農学部学術報告
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発行日 | 2024-02-01
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巻 | 113巻
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出版者 | 岡山大学農学部
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出版者(別表記) | The Faculty of Agriculture, Okayama University
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開始ページ | 55
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終了ページ | 59
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ISSN | 2186-7755
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資料タイプ |
紀要論文
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OAI-PMH Set |
岡山大学
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言語 |
日本語
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論文のバージョン | publisher
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Eprints Journal Name | srfa
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