A NAC Gene regulating senescence improves grain protein, zinc, and iron content in wheat.
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ABSTRACT:
SUBMITTER: Uauy C
PROVIDER: S-EPMC4737439 | biostudies-literature | 2006 Nov
REPOSITORIES: biostudies-literature
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A NAC Gene regulating senescence improves grain protein, zinc, and iron content in wheat.
Uauy Cristobal C Distelfeld Assaf A Fahima Tzion T Blechl Ann A Dubcovsky Jorge J
Science (New York, N.Y.) 20061101 5803
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 i ...[more]
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