Abstract
A novel DREB (dehydration-responsive element binding) gene, designated as LeDREB2, was isolated from tomato. Based on multiple sequence alignment and phylogenetic characterization, LeDREB2 gene was classified into an A-2 group member of the DREBs family. We examined the expression pattern of LeDREB2 gene in tomato under different abiotic stresses. Southern blot analysis showed that LeDREB2 is a single copy gene in tomato genome. The organ specific expression profiling indicated that LeDREB2 gene was strongly expressed in young leaves and roots but weak expression in mature leaves and shoots. Northern blot analysis revealed that various kinds of environmental stress such as salt, drought and cold were significantly induced by LeDREB2 gene after application of time courses treatments except little increase in ABA. Our findings showed that the expression of LeDREB2 gene was induced by high salinity, drought and cold but not by the abscisic acid (ABA) treatment. These results indicated that the LeDREB2 gene is a member of the DREB transcription factors, which may play a role in both abiotic and oxidative stress responses.DOI: http://dx.doi.org/10.3329/bjpbg.v25i1.17006
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Claims 9
Claim · model-written summary
A novel LeDREB2 gene was isolated from tomato.
- Taxon
- tomato
Solanum lycopersicume0 - Gene
- LeDREB2e0
- Outcome
- was isolatede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A novel DREB (dehydration-responsive element binding) gene, designated as LeDREB2, was isolated from tomato”
Claim · model-written summary
Sequence and phylogenetic analysis classified LeDREB2 in the A-2 DREB group.
- Taxon
- tomatoSolanum lycopersicume1
- Gene
- LeDREB2e0
- Outcome
- A-2 group member of the DREBs familye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LeDREB2 gene was classified into an A-2 group member of the DREBs family”
e1“from tomato”
Claim · model-written summary
LeDREB2 is single copy in the tomato genome.
- Taxon
- tomatoSolanum lycopersicume0
- Gene
- LeDREB2e0
- Outcome
- single copy genee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LeDREB2 is a single copy gene in tomato genome”
Claim · model-written summary
LeDREB2 expression was strong in young leaves and roots and weak in mature leaves and shoots.
- Taxon
- tomatoSolanum lycopersicume1
- Organ / stage
- young leaves and rootse0
- Gene
- LeDREB2e0
- Outcome
- strongly expressed in young leaves and roots but weak expression in mature leaves and shootse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LeDREB2 gene was strongly expressed in young leaves and roots but weak expression in mature leaves and shoots”
e1“from tomato”
Claim · model-written summary
High salinity induced LeDREB2 expression.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- high salinitye0
- Gene
- LeDREB2e0
- Outcome
- expression of LeDREB2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of LeDREB2 gene was induced by high salinity, drought and cold but not by the abscisic acid (ABA) treatment”
e1“from tomato”
Claim · model-written summary
Drought induced LeDREB2 expression.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- droughte0
- Gene
- LeDREB2e0
- Outcome
- expression of LeDREB2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of LeDREB2 gene was induced by high salinity, drought and cold but not by the abscisic acid (ABA) treatment”
e1“from tomato”
Claim · model-written summary
Cold induced LeDREB2 expression.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- colde0
- Gene
- LeDREB2e0
- Outcome
- expression of LeDREB2 genee0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of LeDREB2 gene was induced by high salinity, drought and cold but not by the abscisic acid (ABA) treatment”
e1“from tomato”
Claim · model-written summary
ABA treatment did not induce LeDREB2 expression.
- Taxon
- tomatoSolanum lycopersicume1
- Treatment
- abscisic acid (ABA) treatmente0
- Gene
- LeDREB2e0
- Outcome
- expression of LeDREB2 genee0
- Direction
- note0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“expression of LeDREB2 gene was induced by high salinity, drought and cold but not by the abscisic acid (ABA) treatment”
e1“from tomato”
Claim · model-written summary
The authors infer a possible role for LeDREB2 in abiotic and oxidative stress responses.
- Taxon
- tomatoSolanum lycopersicume1
- Gene
- LeDREB2e0
- Outcome
- abiotic and oxidative stress responsese0
- Qualifier
- may play a rolee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“LeDREB2 gene is a member of the DREB transcription factors, which may play a role in both abiotic and oxidative stress responses”
e1“from tomato”
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