Late-Flowering Genes Interact with Early-Flowering Genes to Regulate Flowering Time in Arabidopsis thaliana
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概要
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To investigate the genetic mechanisms regulating the transition from the vegetative to reproductive growth in Arabidopsis, double mutants between three different early-flowering mutants, early flowering 1-1, 2-1, 3-1, (elf 1-1, 2-1, 3-1) and five different late-flowering mutants, gi-1, ft-1, fwa-1, ld-1, and fca-9, were constructed and phenotypes analyzed. Double mutants in all combinations displayed the late-flowering phenotypes which resembled their respective late-flowering parents in both flowering time and the number of vegetative leaves produced. The results indicate that five late-flowering mutants are espistatic to all three early-flowering mutants tested here. This epistatic relationship suggests that ELF1, ELF2, and ELF3 genes function upstream of these five late-flowering genes no matter if they are functioning in autonomous or photoperiod pathways. These three early-flowering genes may negatively modify the activity of most late-flowering genes to influence the time of the vegetative-to-reproductive transition in Arabidopsis.
- 日本植物生理学会の論文
著者
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Chou Ming-lun
Graduate Institute Of Agricultural Biotechnology National Chung Hsing University
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Yang Chang-hsien
Graduate Institute Of Agricultural Biotechnology National Chung Hsing University
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