Abstract
Transcriptome profiling via cDNA microarray analysis identified 869 genes that are differentially expressed in developing tomato (Solanum lycopersicum) pericarp. Parallel phenotypic and targeted metabolite comparisons were employed to inform the expression analysis. Transcript accumulation in tomato fruit was observed to be extensively coordinated and often completely dependent on ethylene. Mutation of an ethylene receptor (Never-ripe [Nr]), which reduces ethylene sensitivity and inhibits ripening, alters the expression of 37% of these 869 genes. Nr also influences fruit morphology, seed number, ascorbate accumulation, carotenoid biosynthesis, ethylene evolution, and the expression of many genes during fruit maturation, indicating that ethylene governs multiple aspects of development both prior to and during fruit ripening in tomato. Of the 869 genes identified, 628 share homology (E-value < or = 1 x 10(-10)) with known gene products or known protein domains. Of these 628 loci, 72 share homology with previously described signal transduction or transcription factors, suggesting complex regulatory control. These results demonstrate multiple points of ethylene regulatory control during tomato fruit development and provide new insights into the molecular basis of ethylene-mediated ripening.
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Claims 9
Claim · model-written summary
869 genes were differentially expressed in developing tomato pericarp.
- Taxon
- tomato
Solanum lycopersicume0 - Organ / stage
- pericarpe0
- Outcome
- genes that are differentially expressede0
- Value
- 869 genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“869 genes that are differentially expressed in developing tomato (Solanum lycopersicum) pericarp”
Claim · model-written summary
Tomato fruit transcript accumulation was extensively coordinated and often wholly dependent on ethylene.
- Taxon
- tomatoSolanum lycopersicume0
- Compound
- ethylenee0
- Outcome
- Transcript accumulatione0
- Qualifier
- extensively coordinated and often completely dependente0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transcript accumulation in tomato fruit was observed to be extensively coordinated and often completely dependent on ethylene”
Claim · model-written summary
The Never-ripe ethylene receptor mutation altered expression of 37% of the 869 genes.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Mutation of an ethylene receptor (Never-ripe [Nr])e0
- Gene
- Never-ripe [Nr]e0
- Outcome
- expressione0
- Value
- 37%e0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutation of an ethylene receptor (Never-ripe [Nr]), which reduces ethylene sensitivity and inhibits ripening, alters the expression of 37% of these 869 genes”
t0“Tomato Fruit Development”
Claim · model-written summary
The Never-ripe mutation reduced ethylene sensitivity and inhibited ripening.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Mutation of an ethylene receptor (Never-ripe [Nr])e0
- Gene
- Never-ripe [Nr]e0
- Outcome
- ethylene sensitivity and inhibits ripeninge0
- Direction
- reducese0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Mutation of an ethylene receptor (Never-ripe [Nr]), which reduces ethylene sensitivity and inhibits ripening”
t0“Tomato Fruit Development”
Claim · model-written summary
Nr influenced tomato fruit morphology and seed number.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Nre0
- Gene
- Nre0
- Outcome
- fruit morphology, seed numbere0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nr also influences fruit morphology, seed number”
t0“Tomato Fruit Development”
Claim · model-written summary
Nr influenced ascorbate accumulation, carotenoid biosynthesis and ethylene evolution.
- Taxon
- TomatoSolanum lycopersicumt0
- Treatment
- Nre0
- Outcome
- ascorbate accumulation, carotenoid biosynthesis, ethylene evolutione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nr also influences fruit morphology, seed number, ascorbate accumulation, carotenoid biosynthesis, ethylene evolution”
t0“Tomato Fruit Development”
Claim · model-written summary
Nr influenced expression of many genes during fruit maturation.
- Taxon
- TomatoSolanum lycopersicumt0
- Organ / stage
- fruit maturatione0
- Treatment
- Nre0
- Outcome
- expression of many genese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Nr also influences fruit morphology, seed number, ascorbate accumulation, carotenoid biosynthesis, ethylene evolution, and the expression of many genes during fruit maturation”
t0“Tomato Fruit Development”
Claim · model-written summary
628 of 869 identified genes had homology to known gene products or protein domains.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- share homologye0
- Value
- 628e0
- Qualifier
- E-value < or = 1 x 10(-10)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the 869 genes identified, 628 share homology (E-value < or = 1 x 10(-10)) with known gene products or known protein domains”
t0“Tomato Fruit Development”
Claim · model-written summary
72 of those 628 loci had homology to previously described signal transduction or transcription factors.
- Taxon
- TomatoSolanum lycopersicumt0
- Outcome
- share homology with previously described signal transduction or transcription factorse0
- Value
- 72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of these 628 loci, 72 share homology with previously described signal transduction or transcription factors”
t0“Tomato Fruit Development”
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