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Expression profiles of five FT-like genes and functional analysis of PhFT-1 in a Phalaenopsis hybrid

文献类型： 外文期刊

作者： Zhou, Shushan 1 ; Jiang, Li 1 ; Guan, Shuangxue 1 ; Gao, Yongxia 1 ; Gao, Qinghua 2 ; Wang, Guangdong 1 ; Duan, Ke 2 ;

作者机构： 1.Nanjing Agr Univ, Dept Hort, Nanjing 210095, Jiangsu, Peoples R China

2.Shanghai Acad Agr Sci, Shanghai Key Lab Protected Hort Technol, Forestry & Fruit Tree Res Inst, Shanghai 201403, Peoples R China

关键词： FLOWERING LOCUS T;Flowering pathways;Flowering regulation;Flowering time;Flowering;Orchidaceae;Ornamental flowers;Positive regulator

期刊名称：ELECTRONIC JOURNAL OF BIOTECHNOLOGY （ 影响因子：2.8； 五年影响因子：3.379 ）

ISSN： 0717-3458

年卷期： 2018 年 31 卷

页码：

收录情况： SCI

摘要： Background: Phalaenopsis is an important ornamental flowering plant that belongs to the Orchidaceae family and is cultivated worldwide. Phalaenopsis has a long juvenile phase; therefore, it is important to understand the genetic elements regulating the transition from vegetative phase to reproductive phase. In this study, FLOWERING LOCUS T (FT) homologs in Phalaenopsis were cloned, and their effects on flowering were analyzed. Results: A total of five FT-like genes were identified in Phalaenopsis. Phylogenetic and expression analyses of these five FT-like genes indicated that some of these genes might participate in the regulation of flowering. A novel FT-like gene, PhFT-1, distantly related to previously reported FT genes in Arabidopsis and other dicot crops, was also found to be a positive regulator of flowering as heterologous expression of PhFT-1 in Arabidopsis causes an early flowering phenotype. Conclusions: Five FT homologous genes from Phalaenopsis orchid were identified, and PhFT-1 positively regulates flowering. (C) 2017 Pontificia Universidad Catolica de Valparaiso. Production and hosting by Elsevier B.V. All rights reserved.

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