Abstract
LHY and CCA1 play key roles in circadian clock functions and photoperiodic flowering in Arabidopsis. Double loss of function of LHY and CCA1 genes (lhy cca1) accelerated flowering under long days or short days, but the lhy cca1 delayed flowering time under constant-light (LL) conditions. FCA encodes an RNA binding protein that plays key roles in the autonomous pathway. Loss of function of FCA increases mRNA level of a major floral repressor gene, FLC. A mutation in FLC gene partially suppressed the late flowering phenotype of the lhy cca1 in LL. Based on this result, we have proposed that FLC may be involved in this process. Increased level of FLC mRNA in fca is responsible for the delay of flowering and the late flowering phenotype of the fca is suppressed by vernalization. In this paper, we isolated an enhancer of the late-flowering phenotype of the lhy cca1 in LL based on natural variation of two Arabidopsis accessions, Columbia and Landsberg erecata. The enhancer was named ELLCL and mapped near the FLC. This result suggested that the gene responsive to ELLCL might be FLC and was consistent with our previous results. The late-flowering phenotype of lhy cca1 was insensitive to vernalization. By contrast, flowering time of the fca was accelerated by vernalization as reported. These results suggested that posttranslational, but not the transcriptional, regulation of FLC might be involved in this process.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 5
Claim · model-written summary
A natural-variation enhancer of lhy cca1 late flowering was isolated and named ELLCL.
- Taxon
- Arabidopsis
Arabidopsise0 - Material
- lhy cca1e0
- Gene
- ELLCLe0
- Outcome
- enhancer of the late-flowering phenotypee0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we isolated an enhancer of the late-flowering phenotype of the lhy cca1 in LL based on natural variation of two Arabidopsis accessions, Columbia and Landsberg erecata. The enhancer was named ELLCL”
Claim · model-written summary
ELLCL mapped near FLC.
- Taxon
- ArabidopsisArabidopsise1
- Gene
- ELLCLe0
- Outcome
- mapped near the FLCe0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The enhancer was named ELLCL and mapped near the FLC.”
e1“Arabidopsis accessions”
Claim · model-written summary
The lhy cca1 late flowering phenotype was insensitive to vernalization.
- Taxon
- ArabidopsisArabidopsise1
- Material
- lhy cca1e0
- Treatment
- vernalizatione0
- Outcome
- late-flowering phenotypee0
- Direction
- insensitivee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The late-flowering phenotype of lhy cca1 was insensitive to vernalization.”
e1“Arabidopsis accessions”
Claim · model-written summary
Vernalization accelerated flowering time in fca.
- Taxon
- ArabidopsisArabidopsise1
- Material
- fcae0
- Treatment
- vernalizatione0
- Outcome
- flowering timee0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“flowering time of the fca was accelerated by vernalization”
e1“Arabidopsis accessions”
Claim · model-written summary
The results suggest posttranslational regulation of FLC may participate in the lhy cca1 process.
- Taxon
- ArabidopsisArabidopsise1
- Gene
- FLCe0
- Outcome
- posttranslational, but not the transcriptional, regulation of FLCe0
- Qualifier
- might be involved in this processe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“posttranslational, but not the transcriptional, regulation of FLC might be involved in this process”
e1“Arabidopsis accessions”
The same questions in other papers
cold · phenology · ArabidopsisResults differ
10 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
8 papers more in this group
See all 12 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.