Evidence map›Paper›PMID 19429606›Full record

ArticlePlant physiology2009

FRIGIDA delays flowering in Arabidopsis via a cotranscriptional mechanism involving direct interaction with the nuclear cap-binding complex.

Nuno Geraldo, Isabel Bäurle, Shin-Ichiro Kidou, Xiangyang Hu, Caroline Dean

Open access · bronzeAbstract read
In one paragraph

Article in Plant physiology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 70 papers.

0numbers the graph read from it
0cells of the map it votes in
70citing papers in PubMed
12.2field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

70 citing papers in PubMed, 145 citations in OpenAlex.

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10 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 2 institutions in 2 countries.

Nuno GeraldoDepartment of Cell and Developmental Biology, John Innes Centre, Norwich NR4 7UH, United Kingdom.
Isabel Bäurle
Shin-Ichiro Kidou
Xiangyang Hu
Caroline Dean
Iwate University · JPJohn Innes Centre · GB

Funding

Biotechnology and Biological Sciences Research Council BBS/E/J/00000581
6 · The paper itself

Abstract

A major determinant of flowering time in natural Arabidopsis (Arabidopsis thaliana) variants is FRIGIDA (FRI). FRI up-regulates expression of the floral repressor FLOWERING LOCUS C (FLC), thereby conferring a vernalization requirement and a winter annual habit. FRI encodes a novel nuclear protein with no conserved domains except for two coiled-coil regions. A mutation in the large subunit of the nuclear cap-binding complex (CBC) suppresses FRI activity, so we have explored the connection between FRI and the nuclear CBC in order to gain further insight into FRI biochemical activity. Mutations in the small subunit of the CBC (CBP20) also suppress FRI up-regulation of FLC. CBP20 interacted directly with FRI in yeast and in planta, and this association of FRI with the 5' cap was reinforced by an RNA ligase-mediated rapid amplification of cDNA ends assay that showed FRI decreased the proportion of FLC transcripts lacking a 5' cap. Loss of CBP20 resulted in very low FLC mRNA levels and an increased proportion of unspliced FLC transcripts. FRI compensated for CBP20 loss, partially restoring FLC levels and normalizing the unspliced-spliced transcript ratio. Our data suggest that FRI up-regulates FLC expression through a cotranscriptional mechanism involving direct physical interaction with the nuclear CBC with concomitant effects on FLC transcription and splicing.

Indexed as

ArabidopsisArabidopsis ProteinsExoribonucleasesFlowersMADS Domain ProteinsMutationPlant ProteinsRNA-Binding ProteinsRNA, MessengerRNA SplicingTranscription, GeneticUp-RegulationArabidopsis ProteinsAt5g10140 protein, ArabidopsisCBP20 protein, ArabidopsisExoribonucleasesFRI protein, ArabidopsisMADS Domain ProteinsPlant ProteinsRNA-Binding ProteinsRNA, MessengerXrn1 protein, plant

Identifiers

PMID19429606
PMCPMC2705036
OpenAlexW2085926474

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.