Abstract
Heading time in bread wheat ( Triticum aestivum L.) is determined by three characters – vernalization requirement, photoperiodic sensitivity and narrow‐sense earliness (earliness per se) – which are involved in the phase transition from vegetative to reproductive growth. The wheat APETALA1 ( AP1 )‐like MADS‐box gene, wheat AP1 ( WAP1 , identical with VRN1 ), has been identified as an integrator of vernalization and photoperiod flowering promotion pathways. A MADS‐box gene, SUPPRESSOR OF OVEREXPRESSION OF CO 1 ( SOC1 ) is an integrator of flowering pathways in Arabidopsis . In this study, we isolated a wheat ortholog of SOC1 , wheat SOC1 ( WSOC1 ), and investigated its relationship to WAP1 in the flowering pathway. WSOC1 is expressed in young spikes but preferentially expressed in leaves. Expression starts before the phase transition and is maintained during the reproductive growth phase. Overexpression of WSOC1 in transgenic Arabidopsis plants caused early flowering under short‐day conditions, suggesting that WSOC1 functions as a flowering activator in Arabidopsis . WSOC1 expression is affected neither by vernalization nor photoperiod, whereas it is induced by gibberellin at the seedling stage. Furthermore, WSOC1 is expressed in transgenic wheat plants in which WAP1 expression is cosuppressed. These findings indicate that WSOC1 acts in a pathway different from the WAP1 ‐related vernalization and photoperiod pathways.
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Claims 9
Claim · model-written summary
The study isolated the wheat SOC1 ortholog WSOC1.
- Taxon
- wheat
Triticum aestivume0 - Gene
- WSOC1e0
- Outcome
- isolated a wheat ortholog of SOC1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“we isolated a wheat ortholog of SOC1 , wheat SOC1 ( WSOC1 )”
Claim · model-written summary
WSOC1 expression occurs in young spikes but preferentially in leaves.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- young spikese0
- Gene
- WSOC1e0
- Outcome
- expressed in young spikes but preferentially expressed in leavese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WSOC1 is expressed in young spikes but preferentially expressed in leaves.”
t0“Wheat”
Claim · model-written summary
WSOC1 expression starts before phase transition and persists during reproductive growth.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- reproductive growth phasee0
- Outcome
- Expression starts before the phase transition and is maintained during the reproductive growth phasee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Expression starts before the phase transition and is maintained during the reproductive growth phase.”
t0“Wheat”
Claim · model-written summary
WSOC1 overexpression caused early flowering in transgenic Arabidopsis under short days.
- Taxon
- Arabidopsis
Arabidopsise0 - Treatment
- Overexpression of WSOC1e0
- Gene
- WSOC1e0
- Outcome
- early floweringe0
- Direction
- earlye0
- Qualifier
- short‐day conditionse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Overexpression of WSOC1 in transgenic Arabidopsis plants caused early flowering under short‐day conditions”
Claim · model-written summary
WSOC1 expression was unaffected by vernalization.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- vernalizatione0
- Gene
- WSOC1e0
- Outcome
- WSOC1 expressione0
- Direction
- affected neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WSOC1 expression is affected neither by vernalization nor photoperiod”
t0“Wheat”
Claim · model-written summary
WSOC1 expression was unaffected by photoperiod.
- Taxon
- WheatTriticum aestivumt0
- Treatment
- photoperiode0
- Gene
- WSOC1e0
- Outcome
- WSOC1 expressione0
- Direction
- affected neithere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WSOC1 expression is affected neither by vernalization nor photoperiod”
t0“Wheat”
Claim · model-written summary
Gibberellin induced seedling WSOC1 expression.
- Taxon
- WheatTriticum aestivumt0
- Organ / stage
- seedling stagee0
- Treatment
- gibberelline0
- Outcome
- inducede0
- Direction
- inducede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it is induced by gibberellin at the seedling stage”
t0“Wheat”
Claim · model-written summary
WSOC1 remained expressed in wheat with cosuppressed WAP1.
- Taxon
- wheatTriticum aestivume0
- Material
- transgenic wheat plantse0
- Gene
- WAP1e0
- Outcome
- WSOC1 is expressede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WSOC1 is expressed in transgenic wheat plants in which WAP1 expression is cosuppressed.”
Claim · model-written summary
The authors infer WSOC1 acts in a flowering pathway distinct from WAP1-related vernalization and photoperiod pathways.
- Taxon
- WheatTriticum aestivumt0
- Gene
- WSOC1e0
- Outcome
- pathway different from the WAP1 ‐related vernalization and photoperiod pathwayse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“WSOC1 acts in a pathway different from the WAP1 ‐related vernalization and photoperiod pathways.”
t0“Wheat”
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See all 20 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.