Abstract
Strong seed dormancy is crucial for preventing pre-harvest sprouting (PHS) in cereal crops. However, the underlying molecular mechanism in wheat remains unclear. Here, we identified a gibberellin (GA)-stimulated regulator gene, TaGASR25, which negatively modulates wheat seed dormancy. Further analyses showed that TaC3HC4, a member of the C3HC4-type zinc finger family, enhances TaGASR25 transcription and interacts with TaGASR25 in the nucleus to negatively regulate wheat seed dormancy through crosstalk with the GA and abscisic acid (ABA) pathways. Marker-trait association analyses revealed that the A/G (-1317 bp) and CGG/GA- (-1645 bp) mutations in the TaGASR25 promoter were significantly associated with differences in seed dormancy among wheat varieties, with A and CGG associated with strong dormancy. Collectively, our findings uncover a novel TaC3HC4-TaGASR25 module regulating seed dormancy and provide promising targets and molecular markers for the molecular breeding of PHS-resistant wheat varieties.
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Claims 6
Claim · model-written summary
TaGASR25 negatively modulates seed dormancy in wheat.
- Taxon
- wheat
Triticum aestivume0 - Gene
- TaGASR25e0
- Outcome
- seed dormancye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we identified a gibberellin (GA)-stimulated regulator gene, TaGASR25, which negatively modulates wheat seed dormancy”
Claim · model-written summary
TaC3HC4 enhances TaGASR25 transcription in wheat.
- Taxon
- wheatTriticum aestivume1
- Gene
- TaC3HC4e1
- Outcome
- TaGASR25 transcriptione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“TaC3HC4, a member of the C3HC4-type zinc finger family, enhances TaGASR25 transcription and interacts with TaGASR25 in the nucleus to negatively regulate wheat seed dormancy through crosstalk with the GA and abscisic acid (ABA) pathways”
Claim · model-written summary
TaC3HC4 interacts with TaGASR25 in the nucleus to negatively regulate wheat seed dormancy through crosstalk with the GA and ABA pathways.
- Taxon
- wheatTriticum aestivume1
- Gene
- TaC3HC4e1
- Outcome
- seed dormancye1
- Qualifier
- through crosstalk with the GA and abscisic acid (ABA) pathwayse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“TaC3HC4, a member of the C3HC4-type zinc finger family, enhances TaGASR25 transcription and interacts with TaGASR25 in the nucleus to negatively regulate wheat seed dormancy through crosstalk with the GA and abscisic acid (ABA) pathways”
Claim · model-written summary
A/G (-1317 bp) and CGG/GA- (-1645 bp) mutations in the TaGASR25 promoter are significantly associated with differences in seed dormancy among wheat varieties.
- Taxon
- wheatTriticum aestivume2
- Material
- A/G (-1317 bp) and CGG/GA- (-1645 bp) mutationse2
- Gene
- TaGASR25e2
- Outcome
- seed dormancye2
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Marker-trait association analyses revealed that the A/G (-1317 bp) and CGG/GA- (-1645 bp) mutations in the TaGASR25 promoter were significantly associated with differences in seed dormancy among wheat varieties, with A and CGG associated with strong dormancy”
Claim · model-written summary
The A and CGG promoter variants are associated with strong seed dormancy in wheat varieties.
- Taxon
- wheatTriticum aestivume2
- Material
- A and CGGe2
- Outcome
- seed dormancye2
- Direction
- increaseinferrede2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“Marker-trait association analyses revealed that the A/G (-1317 bp) and CGG/GA- (-1645 bp) mutations in the TaGASR25 promoter were significantly associated with differences in seed dormancy among wheat varieties, with A and CGG associated with strong dormancy”
Claim · model-written summary
The TaGASR25 promoter markers and targets are recommended for molecular breeding of PHS-resistant wheat varieties.
- Taxon
- wheat varietiesTriticum aestivume3
- Outcome
- molecular markerse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“provide promising targets and molecular markers for the molecular breeding of PHS-resistant wheat varieties”