Flowering Locus T Gene Family Identification and Expression Analysis during Flowering Process in Lonicera japonica
Jia Xiaofeng
Bai Yanhong
Pu Gaobin
Liu Qian
Li Jia
Zhang Yongqing
Liu Zhenhua
Abstract：To investigate the role of the Flowering Locus T(FT)gene and its homologous genes in the process of flowering in Lonicera japonica,this study obtained seven LjFT and its homologous genes from the ge-nome of L.japonica"Huajin 6"and systematically analyzed them using bioinformatics methods.By real-time fluorescence quantitative PCR(RT-qPCR),it was found that the expression of LjFT increased gradually with the prolongation of daylight duration in both cutting seedlings and seed seedlings,indicating that LjFT might act as a promoter of flowering.The expression of LjFTL2,LjFTL3,LjFTL4,LjFTL5 and LjFTL6 gradually de-creased with the prolongation of daylight duration in both cutting seedlings and seed seedlings,indicating that they might act as repressors of flowering.Further functional studies on LjFT revealed that compared to the con-trol,over-expression of LjFT in Arabidopsis plants resulted in an earlier flowering time,which suggested that LjFT possessed the capability to promote early flowering in the plants.The findings presented above provided a research reference for further research on the molecular mechanisms of flowering and breeding new varieties of L.japonica with different flowering time.
Keywords：Lonicera japonicaFT and its homologous geneFloweringExpression analysisFunctional analysis
Publication Date：2025-03-30
Online Publishing Date：2026-05-22(First online date of this platform, not the publication date of the document)
Pages：9( 10-18 )