A pair of related genes with antagonistic roles in mediating flowering signals
A pair of related genes with antagonistic roles in mediating flowering signals
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DOI：
10.1126/science.286.5446.1960
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发表时间：
1999-12-03
期刊：
影响因子：
56.9
通讯作者：
Araki, T
中科院分区：
文献类型：
--
作者：
Kobayashi, Y;Kaya, H;Araki, T
拟南芥的开花是通过几个相互作用的途径促进的。光周期依赖性途径将信号从光感受器传递到转录因子基因CONSTANS（CO），其激活下游分生组织身份基因如LEAFY（LFY）。FT，与LFY一起，促进开花，并受到CO的正调控。FT的损失导致开花延迟，而FT的过度表达导致早熟开花独立于CO或光周期。FT部分作用于CO的下游，并以与其同源基因MATERIAL FLOWER1（TFL1）拮抗的方式介导开花信号。
Flowering in Arabidopsis is promoted via several interacting pathways. A photoperiod-dependent pathway relays signals from photoreceptors to a transcription factor gene, CONSTANS (CO), which activates downstream meristem identity genes such as LEAFY (LFY). FT, together with LFY, promotes flowering and is positively regulated by CO. Loss of FT causes delay in flowering, whereas overexpression of FT results in precocious flowering independent of CO or photoperiod. FT acts in part downstream of CO and mediates signals for flowering in an antagonistic manner with its homologous gene, TERMINAL FLOWER1 (TFL1).