ArticlePlant cell reports2012
Isolation and expression analysis of a LEAFY/FLORICAULA homolog and its promoter from London plane (Platanus acerifolia Willd.).
Article in Plant cell reports, 2012. 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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5 citing papers in PubMed.
- Functional characterization of three TERMINAL FLOWER 1-like genes from Platanus acerifolia.Plant cell reports · 2023Article
- Isolation and Functional Characterization of aInternational journal of molecular sciences · 2022Article
- Article
- Functional conservation and divergence of five SEPALLATA-like genes from a basal eudicot tree, Platanus acerifolia.Planta · 2017Article
- Detoxification strategies and regulation of oxygen production and flowering of Platanus acerifolia under lead (Pb) stress by transcriptome analysis.Environmental science and pollution research international · 2015Article
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7 authors.
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Abstract
The LEAFY/FLORICAULA (LFY/FLO) homologous genes are necessary for normal flower development in diverse angiosperm species. To understand the genetic and molecular mechanisms underlying floral initiation and development in Platanaceae, an early divergent eudicot family consisting of large monoecious trees, we isolated a homolog of LFY/FLO, PlacLFY, and its promoter from London plane (Platanus acerifolia). PlacLFY is 1,419 bp in length, with an ORF of 1,122 bp encoding a predicted polypeptide of 374 amino acids and 5'/3'-UTR of 54 and 213 bp, respectively. The putative PlacLFY protein showed a high degree of identity (56-84 %) with LFY/FLO homologs from other species, including two highly conserved regions, the N and C domains, and a less conserved amino-terminal proline-rich region. Real-time PCR analysis showed that PlacLFY was expressed mainly in male inflorescences from May of the first year to March of next year, with the highest expression level in December, and in female inflorescences from June to April of next year. PlacLFY mRNA was also detected strongly in subpetiolar buds of December from 4-year-old and adult trees, and slightly in stem of young seedling and young leaf of adult plant. Additionally, we cloned 1,138 bp promoter sequence of PlacLFY and we drove GUS expression in transgenic tobacco by the chimerical pPlacLFY::GUS construction. Histological GUS staining analysis indicated that PlacLFY promoter can drive GUS gene expression in shoot apex, stem, young leaf and petiole, flower stalk, petal tip, and young/semi-mature fruits of transgenic tobacco, which is almost identical to the expression pattern of PlacLFY in London plane. The results revealed that the PlacLFY gene isolated from London plane is expressed not only in reproductive organ but also in vegetative organs. Moreover, this expression pattern is consistent with the expression pattern in tobacco of a GUS reporter gene under the control of the potential promoter region of PlacLFY.
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