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- 西島 隆明
- 農業・食品産業技術総合研究機構 花き研究所 筑波大学生命環境科学研究科
書誌事項
- タイトル別名
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- Large Flower Size: Molecular Basis and Role of Cytokinin
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Large flower size is an important trait that influences the economic value of floricultural plants. Large flower size is conferred by two morphological changes i.e. increased petal number and individual petal size. Increased petal number is induced by enlargement of the floral meristem or homeotic conversion of stamens and carpels into petals. Genes regulating meristematic competence mediate enlargement of the floral meristem, while floral homeotic genes mediate the homeotic conversion of floral organs. Increased individual petal size is induced by increased cell size or cell number. Polyploidization of the nuclear genome increases petal cell size, while increased petal cell number is induced by enhanced expression of the genes involved in auxin signal transduction and cytokinin biosynthesis. In this review, the molecular mechanisms affecting flower size, elucidated mainly using model plants such as Arabidopsis, are summarized. Further, our research on the roles of cytokinin biosynthesis and signal transduction in increased flower size in petunia, induced by the single major gene Grandiflora, is discussed. Based on these results, a possible systematic breeding method for increasing flower size is discussed.<br>
収録刊行物
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- Journal of the Japanese Society for Horticultural Science
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Journal of the Japanese Society for Horticultural Science 81 (2), 129-139, 2012
一般社団法人 園芸学会
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詳細情報 詳細情報について
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- CRID
- 1390282680266168448
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- NII論文ID
- 130004510748
- 40019226461
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- NII書誌ID
- AA12177046
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- COI
- 1:CAS:528:DC%2BC38XosVWhsbg%3D
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- ISSN
- 1882336X
- 18823351
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- NDL書誌ID
- 023577889
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可