Abstract
Enhancing the nutritional value of food crops is a means of improving human nutrition and health. We report here the positional cloning of Gpc-B1, a wheat quantitative trait locus associated with increased grain protein, zinc, and iron content. The ancestral wild wheat allele encodes a NAC transcription factor (NAM-B1) that accelerates senescence and increases nutrient remobilization from leaves to developing grains, whereas modern wheat varieties carry a nonfunctional NAM-B1 allele. Reduction in RNA levels of the multiple NAM homologs by RNA interference delayed senescence by more than 3 weeks and reduced wheat grain protein, zinc, and iron content by more than 30%.
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Claims 8
Claim · model-written summary
Gpc-B1 was positionally cloned as a wheat QTL associated with increased grain protein, zinc and iron content.
- Taxon
- wheat
Triticum aestivume0 - Gene
- Gpc-B1e0
- Outcome
- grain protein, zinc, and iron contente0
- Direction
- increasede0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“positional cloning of Gpc-B1, a wheat quantitative trait locus associated with increased grain protein, zinc, and iron content”
Claim · model-written summary
The ancestral wild wheat NAM-B1 allele accelerates senescence.
- Taxon
- wheatTriticum aestivume0
- Material
- ancestral wild wheat allelee0
- Gene
- NAM-B1e0
- Outcome
- senescencee0
- Direction
- acceleratese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ancestral wild wheat allele encodes a NAC transcription factor (NAM-B1) that accelerates senescence and increases nutrient remobilization from leaves to developing grains”
Claim · model-written summary
The ancestral wild wheat NAM-B1 allele increases nutrient remobilization from leaves to developing grains.
- Taxon
- wheatTriticum aestivume0
- Material
- ancestral wild wheat allelee0
- Organ / stage
- leaves to developing grainse0
- Gene
- NAM-B1e0
- Outcome
- nutrient remobilizatione0
- Direction
- increasese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ancestral wild wheat allele encodes a NAC transcription factor (NAM-B1) that accelerates senescence and increases nutrient remobilization from leaves to developing grains”
Claim · model-written summary
Modern wheat varieties carry a nonfunctional NAM-B1 allele.
- Taxon
- wheatTriticum aestivume0
- Material
- modern wheat varietiese0
- Gene
- NAM-B1e0
- Outcome
- nonfunctional NAM-B1 allelee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“modern wheat varieties carry a nonfunctional NAM-B1 allele”
Claim · model-written summary
RNA interference of NAM homologs delayed wheat senescence by more than 3 weeks.
- Taxon
- wheatTriticum aestivume1
- Treatment
- RNA interferencee0
- Gene
- NAM homologse0
- Outcome
- senescencee0
- Direction
- delayede0
- Value
- more than 3 weekse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in RNA levels of the multiple NAM homologs by RNA interference delayed senescence by more than 3 weeks”
e1“wheat grain protein”
Claim · model-written summary
RNA interference of NAM homologs reduced wheat grain protein content by more than 30%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RNA interferencee0
- Gene
- NAM homologse0
- Outcome
- grain proteine0
- Direction
- reducede0
- Value
- more than 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in RNA levels of the multiple NAM homologs by RNA interference delayed senescence by more than 3 weeks and reduced wheat grain protein, zinc, and iron content by more than 30%”
Claim · model-written summary
RNA interference of NAM homologs reduced wheat grain zinc content by more than 30%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RNA interferencee0
- Gene
- NAM homologse0
- Outcome
- zince0
- Direction
- reducede0
- Value
- more than 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in RNA levels of the multiple NAM homologs by RNA interference delayed senescence by more than 3 weeks and reduced wheat grain protein, zinc, and iron content by more than 30%”
Claim · model-written summary
RNA interference of NAM homologs reduced wheat grain iron content by more than 30%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RNA interferencee0
- Gene
- NAM homologse0
- Outcome
- iron contente0
- Direction
- reducede0
- Value
- more than 30%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Reduction in RNA levels of the multiple NAM homologs by RNA interference delayed senescence by more than 3 weeks and reduced wheat grain protein, zinc, and iron content by more than 30%”
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See all 17 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.