Abstract
The isolation and initial characterization of the Arabidopsis thaliana SPL3 gene are described. SPL3 belongs to a gene family encoding putative transcription factors characterized by a conserved DNA-binding domain, the SBP domain. SPL3 transcription is developmentally regulated and is localized mainly in vegetative and inflorescence apical meristems, floral meristems and in leaf and floral organ primordia. SPL3 recognizes a conserved sequence motif in the promoter region of the A. thaliana floral meristem identity gene AP1. Similarly to AP1, constitutive expression of SPL3 results in early flowering. However, constitutive expression of SPL3 in an ap1 mutant background showed that AP1 is not required for the early flowering phenotype of the SPL3 transgenic plants. The function of SPL3 during flowering as well as its possible functional redundancy are discussed.
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Claims 4
Claim · model-written summary
SPL3 transcription is developmentally regulated and localized mainly in vegetative and inflorescence apical meristems and floral meristems in Arabidopsis.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianae0 - Organ / stage
- vegetative and inflorescence apical meristemse1
- Gene
- SPL3e1
- Outcome
- transcriptione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolation and initial characterization of the Arabidopsis thaliana SPL3 gene are described”
e1“SPL3 transcription is developmentally regulated and is localized mainly in vegetative and inflorescence apical meristems, floral meristems and in leaf and floral organ primordia”
Claim · model-written summary
SPL3 recognizes a conserved sequence motif in the promoter of the floral meristem identity gene AP1.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Gene
- AP1e1
- Outcome
- recognizes a conserved sequence motife1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolation and initial characterization of the Arabidopsis thaliana SPL3 gene are described”
e1“SPL3 recognizes a conserved sequence motif in the promoter region of the A. thaliana floral meristem identity gene AP1”
Claim · model-written summary
Constitutive expression of SPL3 results in early flowering in Arabidopsis.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Treatment
- constitutive expression of SPL3e1
- Gene
- SPL3e1
- Outcome
- early floweringe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolation and initial characterization of the Arabidopsis thaliana SPL3 gene are described”
e1“Similarly to AP1, constitutive expression of SPL3 results in early flowering”
Claim · model-written summary
AP1 is not required for the early flowering phenotype of plants with constitutive expression of SPL3.
- Taxon
- Arabidopsis thalianaArabidopsis thalianae0
- Material
- ap1 mutante1
- Treatment
- constitutive expression of SPL3 in an ap1 mutant backgrounde1
- Gene
- AP1e1
- Outcome
- early flowering phenotypee1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The isolation and initial characterization of the Arabidopsis thaliana SPL3 gene are described”
e1“constitutive expression of SPL3 in an ap1 mutant background showed that AP1 is not required for the early flowering phenotype of the SPL3 transgenic plants”
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