Paper · 2019 · Canadian Journal of Plant Science

Constitutive expression of chrysanthemum CmBBX29 delays flowering time in transgenic Arabidopsis

Hong Chen; Fei Huang; Yanan Liu; et al.

7
claims
12
verbatim quotes
9
citations
2
research areas
✓
Open access

Abstract

BBX transcription factors are known to regulate the flowering time and the plant response to various abiotic stresses, but their functions in chrysanthemum have yet to be thoroughly explored. Here, a chrysanthemum homolog of the Arabidopsis thaliana gene AtBBX29 was isolated and characterized. The gene was transcribed in various plant organs but most strongly in the root and in the ligulate flowers. Its temporal pattern of transcription mirrored that of CmCO, the chrysanthemum homolog of the key flowering regulator CONSTANS (CO). Its constitutive expression in A. thaliana induced a delay to flowering, suppressing the transcription of FLOWERING LOCUS T (FT), SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1), LEAFY (LFY), and APETALA 1 (AP1), while promoting that of FLOWERING LOCUS C (FLC). Our results indicate that CmBBX29 can regulate flowering time in A. thaliana by the integration of FLC and the photoperiod pathway.

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 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

A chrysanthemum homolog of AtBBX29 was isolated and characterized.

Taxon
chrysanthemumChrysanthemume0
Gene
AtBBX29e0
Outcome
homolog of the Arabidopsis thaliana gene AtBBX29 was isolated and characterizede0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

e0

“a chrysanthemum homolog of the Arabidopsis thaliana gene AtBBX29 was isolated and characterized”

✓ located verbatim in the source · abstract, characters 198–293 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

The gene was transcribed in multiple organs, most strongly in roots and ligulate flowers.

Taxon
chrysanthemumChrysanthemumt0
Organ / stage
root and in the ligulate flowerse0
Gene
CmBBX29t0
Outcome
transcribed in various plant organse0
Direction
most stronglye0

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“chrysanthemum CmBBX29”

✓ located verbatim in the source · title, characters 27–48 · show in text ↑
e0

“The gene was transcribed in various plant organs but most strongly in the root and in the ligulate flowers”

✓ located verbatim in the source · abstract, characters 295–401 · show in text ↑
Associationobservedoriginal resultmeasured

Claim · model-written summary

The temporal transcription pattern of CmBBX29 mirrored that of CmCO.

Taxon
chrysanthemumChrysanthemumt0
Gene
CmCOe0
Outcome
temporal pattern of transcriptione0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Chrysanthemum
Chrysanthemum · Taxon · picture from its Wikimedia Commons categoryLucia Condac · CC BY 3.0 · Wikimedia Commons ↗

Verbatim

t0

“chrysanthemum CmBBX29”

✓ located verbatim in the source · title, characters 27–48 · show in text ↑
e0

“Its temporal pattern of transcription mirrored that of CmCO”

✓ located verbatim in the source · abstract, characters 403–462 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Constitutive CmBBX29 expression delayed flowering in A. thaliana.

Taxon
A. thalianaArabidopsis thalianae0
Treatment
constitutive expressione0
Gene
CmBBX29t0
Outcome
floweringe0
Direction
delaye0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arabidopsis thaliana
Arabidopsis thaliana · TaxonOriginal uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“chrysanthemum CmBBX29 delays flowering time in transgenic Arabidopsis”

✓ located verbatim in the source · title, characters 27–96 · show in text ↑
e0

“Its constitutive expression in A. thaliana induced a delay to flowering”

✓ located verbatim in the source · abstract, characters 536–607 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Constitutive CmBBX29 expression suppressed FT, SOC1, LFY and AP1 transcription.

Taxon
ArabidopsisArabidopsist0
Treatment
CmBBX29t0
Gene
FLOWERING LOCUS T (FT), SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1), LEAFY (LFY), and APETALA 1 (AP1)e0
Outcome
transcriptione0
Direction
suppressinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arabidopsis
Arabidopsis · Taxon · picture of the genus (one of its species)Original uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“chrysanthemum CmBBX29 delays flowering time in transgenic Arabidopsis”

✓ located verbatim in the source · title, characters 27–96 · show in text ↑
e0

“suppressing the transcription of FLOWERING LOCUS T (FT), SUPPRESSOR OF OVEREXPRESSION OF CONSTANS 1 (SOC1), LEAFY (LFY), and APETALA 1 (AP1)”

✓ located verbatim in the source · abstract, characters 609–749 · show in text ↑
Intervention effectobservedoriginal resultmeasured

Claim · model-written summary

Constitutive CmBBX29 expression promoted FLC transcription.

Taxon
ArabidopsisArabidopsist0
Treatment
CmBBX29t0
Gene
FLOWERING LOCUS C (FLC)e0
Outcome
that of FLOWERING LOCUS C (FLC)e0
Direction
promotinge0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arabidopsis
Arabidopsis · Taxon · picture of the genus (one of its species)Original uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

t0

“chrysanthemum CmBBX29 delays flowering time in transgenic Arabidopsis”

✓ located verbatim in the source · title, characters 27–96 · show in text ↑
e0

“while promoting that of FLOWERING LOCUS C (FLC)”

✓ located verbatim in the source · abstract, characters 751–798 · show in text ↑
Mechanismauthor interpretationoriginal resultmeasured

Claim · model-written summary

The authors infer CmBBX29 regulates flowering time through FLC and the photoperiod pathway.

Taxon
A. thalianaArabidopsis thalianae0
Gene
CmBBX29e0
Outcome
flowering timee0
Qualifier
integration of FLC and the photoperiod pathwaye0

Not reportedDirection

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Arabidopsis thaliana
Arabidopsis thaliana · TaxonOriginal uploader was Brona at en.wikipedia . User:Roepers at nl.wikipedia · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“CmBBX29 can regulate flowering time in A. thaliana by the integration of FLC and the photoperiod pathway”

✓ located verbatim in the source · abstract, characters 826–930 · show in text ↑

overexpression · phenology · Arabidopsis thaliana (thale cress)Positive and negative results

19 papers: 9 positive, 10 negative or no effect

9 papers in the same direction as this paper · 9 in the opposite direction

  1. negative
  2. positive
  3. positive

15 papers more in this group

See all 19 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.