Abstract
Waterlogging causes oxygen deprivation within plant roots and affects crop growth and yield. In crop wheat (Triticum aestivum), molecular responses to waterlogging are poorly understood. Here, we performed a genome-wide analysis of group VII ethylene response factor (ERFVII) genes in hexaploid wheat and identified 25 genes, which were induced by waterlogging with diverse manner. Among them, TaERFVII.1 exhibited differential expression patterns between waterlogging-tolerant wheat Nonglin46 and susceptible wheat Yangmai16 under waterlogging. Constitutive expression of TaERFVII.1 with an MYC-peptide tag at its N terminus in wheat enhanced tolerance to waterlogging as evidenced by increased grain weight per plant, survival rate, and chlorophyll content of leaves and by increased expression of waterlogging-responsive genes, while silencing of TaERFVII.1 compromised the expression of waterlogging-responsive genes. Notably, constitutive expression of the stabilized TaERFVII.1 did not negatively impact both plant development and grain yield under standard conditions. We further demonstrated that constitutive expression of stabilized TaERFVII.1 elevated the transcriptional level of TaSAB18.1, the ortholog of Arabidopsis HRA1 and rice SAB18, consequently reduced the expression of waterlogging-responsive genes under standard conditions. These results suggest that TaERFVII.1 plays an important role in wheat tolerance to waterlogging, and it could be a candidate for improving crop waterlogging tolerance.
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Claims 8
Claim · model-written summary
Twenty-five wheat ERFVII genes were identified and showed diverse induction by waterlogging.
- Taxon
- wheat
Triticum aestivume1 - Gene
- ERFVIIe1
- Outcome
- genes, which were induced by waterlogginge0
- Value
- 25 genese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“identified 25 genes, which were induced by waterlogging with diverse manner”
e1“group VII ethylene response factor (ERFVII) genes in hexaploid wheat”
Claim · model-written summary
TaERFVII.1 expression differed between tolerant Nonglin46 and susceptible Yangmai16 during waterlogging.
- Taxon
- wheatTriticum aestivume0
- Material
- Nonglin46e0
- Treatment
- waterlogginge0
- Gene
- TaERFVII.1e0
- Outcome
- differential expression patternse0
- Comparator
- Yangmai16e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“TaERFVII.1 exhibited differential expression patterns between waterlogging-tolerant wheat Nonglin46 and susceptible wheat Yangmai16 under waterlogging”
Claim · model-written summary
Constitutive TaERFVII.1 expression increased grain weight per plant, survival and leaf chlorophyll under waterlogging.
- Taxon
- wheatTriticum aestivume0
- Treatment
- Constitutive expression of TaERFVII.1e0
- Gene
- TaERFVII.1e0
- Outcome
- grain weight per plant, survival rate, and chlorophyll content of leavese0
- Direction
- increasede0
- Qualifier
- waterlogginge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Constitutive expression of TaERFVII.1 with an MYC-peptide tag at its N terminus in wheat enhanced tolerance to waterlogging as evidenced by increased grain weight per plant, survival rate, and chlorophyll content of leaves”
Claim · model-written summary
Constitutive TaERFVII.1 expression increased waterlogging-responsive gene expression.
- Taxon
- wheatTriticum aestivume1
- Treatment
- Constitutive expression of TaERFVII.1e1
- Gene
- TaERFVII.1e1
- Outcome
- expression of waterlogging-responsive genese0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“by increased expression of waterlogging-responsive genes”
e1“Constitutive expression of TaERFVII.1 with an MYC-peptide tag at its N terminus in wheat”
t0“wheat”
Claim · model-written summary
Silencing TaERFVII.1 compromised waterlogging-responsive gene expression.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- silencing of TaERFVII.1e0
- Gene
- TaERFVII.1e0
- Outcome
- expression of waterlogging-responsive genese0
- Direction
- compromisede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“silencing of TaERFVII.1 compromised the expression of waterlogging-responsive genes”
t0“wheat”
Claim · model-written summary
Stabilized TaERFVII.1 expression did not negatively affect development or grain yield under standard conditions.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- constitutive expression of the stabilized TaERFVII.1e0
- Gene
- TaERFVII.1e0
- Outcome
- plant development and grain yielde0
- Direction
- did not negatively impacte0
- Qualifier
- standard conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of the stabilized TaERFVII.1 did not negatively impact both plant development and grain yield under standard conditions”
t0“wheat”
Claim · model-written summary
Stabilized TaERFVII.1 expression elevated TaSAB18.1 transcription.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- constitutive expression of stabilized TaERFVII.1e0
- Gene
- TaSAB18.1e0
- Outcome
- transcriptional level of TaSAB18.1e0
- Direction
- elevatede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“constitutive expression of stabilized TaERFVII.1 elevated the transcriptional level of TaSAB18.1”
t0“wheat”
Claim · model-written summary
Stabilized TaERFVII.1 expression reduced waterlogging-responsive gene expression under standard conditions.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- constitutive expression of stabilized TaERFVII.1e1
- Gene
- TaERFVII.1e1
- Outcome
- expression of waterlogging-responsive genese0
- Direction
- reducede0
- Qualifier
- standard conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“consequently reduced the expression of waterlogging-responsive genes under standard conditions”
e1“constitutive expression of stabilized TaERFVII.1 elevated the transcriptional level of TaSAB18.1”
t0“wheat”
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