ArticlePlant cell reports2022
FT-like paralogs are repressed by an SVP protein during the floral transition in Phalaenopsis orchid.
Article in Plant cell reports, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed, 11 citations in OpenAlex.
- Adaptive genomic signatures in PEBP genes reveal flowering plasticity and ecological specialization in Orchidaceae.Plant communications · 2026Article
- Genome-Wide Identification and Expression Analysis of the PEBP Gene Family inPlants (Basel, Switzerland) · 2026Article
- Transcriptome Analysis Reveals Endogenous Hormone Changes during Spike Development inInternational journal of molecular sciences · 2022Article
- Functional diversification and molecular mechanisms of FLOWERING LOCUS T/TERMINAL FLOWER 1 family genes in horticultural plants.Molecular horticulture · 2022Review
- Advances and prospects of orchid research and industrialization.Horticulture research · 2022Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
key messageAn SVP protein, PhSVP, bound to the CArG-boxes in the promoter regions of FT-like paralogs and repressed their expression, thus affecting the floral transition in Phalaenopsis orchid. Phalaenopsis is an important ornamental flower native to tropical rain forests. It usually reaches vegetative maturity after 4-5 leaves and, after a juvenile stage, forms a flower spike (inflorescence) from the axillary buds. The PEBP gene family encodes a phosphatidyl-ethanolamine-binding protein (PEBP) domain involved in regulating flowering and other aspects of plant development. Here, we identified eight PEBP family genes in Phalaenopsis and detected the expression patterns of seven of them in various organs. Among them, PhFT1 (Phalaenopsis hybrid FLOWERING LOCUS T1), PhFT3, PhFT5, and PhMFT (Phalaenopsis hybrid MOTHER OF FT AND TFL1) promoted flowering in transgenic Arabidopsis, while PhFT6 inhibited flowering. PhSVP (Phalaenopsis hybrid SHORT VEGETATIVE PHASE), an SVP protein that repressed flowering in Arabidopsis, bound to the CArG-boxes in the promoter regions of PhFT3, PhFT6, and PhMFT in a yeast one-hybrid assay. Additionally, dual-luciferase and transient expression assays showed that PhSVP significantly inhibits the expression of both PhFT3 and PhFT6. Together, our work provides a comprehensive understanding of the PhFT-like genes that can promote or repress flowering, and it suggests strategies for regulating the floral transition in Phalaenopsis that exploit the evolutionary versatility of PhFTs to respond to various signals stimuli.
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