FLOWERING LOCUS T(FT)in Photosensitive Type Chrysanthemum Accelerates Flowering in Arabidopsis
作者机构：College of Horticulture and Landscape ArchitectureZhongkai University of Agriculture and EngineeringGuangzhou510225China
出 版 物：《Phyton-International Journal of Experimental Botany》 (国际实验植物学杂志（英文）)
年 卷 期：2024年第93卷第4期
页 面：819-830页
核心收录：
学科分类：0710[理学-生物学] 071001[理学-植物学] 07[理学]
基 金：the Major Technological Innovation of Guangdong Province of China,Grant Number 2020B020220009 the Science and Technology Projects,Grant Number 202201011833
主 题：Chrysanthemum morifolium flowering-related genes CmFT photoperiod pathway heterologous expression
摘 要：FLOWERING LOCUS T(FT)is an important factor for integrating flowering signals through the photoperiod pathway,which significantly promotes *** chrysanthemum varieties are short-day plants,sensitive to the photoperiod,which limits their ornamental and annual production *** this study,we aim to analyze the nutrients and flowering-related genes of chrysanthemums with different photoperiod types and to clone and verify the function of the flowering-related gene *** found that the formation of floral buds requires the accumulation of starch while consuming soluble sugars and the expression patterns of flowering-related genes GIGANTEA(GI),CONSTANS(CO),and FT in ***‘Zilian’and ***‘Zihongtuogui’had a certain synchronization during floral buds differentiation according to our quantitative validation,and the expression levels of CmGI,CmCO and CmFT in ***‘Zihongtuogui’were higher than those in ***.‘Zilian’in the later stage of *** was cloned from photosensitive ***‘Zihongtuogui’and polypeptide alignment and phylogenetic analysis showed that CmFT was clustered in FT-like *** further functional verification,we obtained two Arabidopsis transgenic *** results showed that CmFT transgenic ft mutant lines can significantly accelerate flowering in ***,we can initially confirm that CmFT plays an important role in promoting flowering,which may be the key reason for the photosensitivity of ***‘Zihongtuogui’.Overall,the results of this study are of great importance in revealing the flowering mechanism of different photoperiod types of chrysanthemums.
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