| Characterization of a new mutant allele of the Arabidopsis Flowering Locus D （FLD） gene that controls the flowering time by repressing FLC |
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| 作者姓名： | CHEN Ruiqiang ZHANG Suzhi SUN Shulan CHANG Jianhong ZUO Jianru |
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| 作者单位： | [1]Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China [2]Graduate School, Chinese Acadamy of Sciences, Beijing 100049, China |
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| 摘 要： | Flowering in higher plants is controlled by both the internal and environmental cues. In Arabidopsis, several major genetic loci have been defined as the key switches to control flowering. The Flowering Locus C （FLC） gene has been shown in the autonomous pathway to inhibit the vegetative-to-reproductive transition. FLC appears to be repressed by Flowering Locus D （FLD）, which encodes a component of the histone deacetylase complex. Here we report the identification and characterization of a new mutant allele f/d-5. Genetic analysis indicates that fld-5 （in the Wassilewskija background） is allelic to the previously characterized fld-3 and fld-4 （in the Colombia-0 background）. Genetic and molecular analyses reveal that fld-5 carries a frame-shift mutation, resulting in a premature termination of the FLD open reading frame. The FLC expression is remarkably increased in fld-5, which presumably attributes to the extremely delayed flowering phenotype of the mutant.
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| 关 键 词： | 阿布属 开花基因位点 突变等位基因 植物遗传学 开花时间控制 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005-07-132005-09-21 |
Characterization of a new mutant allele of the<Emphasis Type="Italic">Arabidopsis Flowering Locus D (FLD)</Emphasis> gene that controls the flowering time by repressing<Emphasis Type="Italic">FLC</Emphasis> |
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| CHEN Ruiqiang ZHANG Suzhi SUN Shulan CHANG Jianhong ZUO Jianru.Characterization of a new mutant allele of theArabidopsis Flowering Locus D (FLD) gene that controls the flowering time by repressingFLC[J].Chinese Science Bulletin,2005,50(23):2701-2706. |
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| Authors: | Chen?Ruiqiang Zhang?Suzhi Sun?Shulan Chang?Jianhong Email author" target="_blank">Zuo?JianruEmail author |
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| Institution: | (1) Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, 100101 Beijing, China;(2) Graduate School, Chinese Acadamy of Sciences, 100049 Beijing, China |
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| Abstract: | Flowering in higher plants is controlled by both the internal and environmental cues. In Arabidopsis, several major genetic loci have been defined as the key switches to control flowering. The Flowering Locus C (FLC) gene has been shown in the autonomous pathway to inhibit the vege-tative-to-reproductive transition. FLC appears to be re-pressed by Flowering Locus D (FLD), which encodes a com-ponent of the histone deacetylase complex. Here we report the identification and characterization of a new mutant allele fld-5. Genetic analysis indicates that fld-5 (in the Was-silewskija background) is allelic to the previously character-ized fld-3 and fld-4 (in the Colombia-0 background). Genetic and molecular analyses reveal that fld-5 carries a frame-shift mutation, resulting in a premature termination of the FLD open reading frame. The FLC expression is remarkably in-creased in fld-5, which presumably attributes to the ex-tremely delayed flowering phenotype of the mutant. |
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| Keywords: | Arabidopsis FLC fld-5 flowering |
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