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A NAC Gene Regulating Senescence Improves Grain Protein, Zinc, and Iron Content in Wheat
Open accessAbstract
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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Citations
Cited by
White, P. J., & Broadley, M. R. (2009) · New Phytologist · doi:10.1111/j.1469-8137.2008.02738.x · Cited by 2,178
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Xu, G., Fan, X., & Miller, A. J. (2012) · Annual Review of Plant Biology · doi:10.1146/annurev-arplant-042811-105532 · Cited by 2,114
Genome Plasticity a Key Factor in the Success of Polyploid Wheat Under Domestication
Dubcovsky, J., & Dvorak, J. (2007) · Science · doi:10.1126/science.1143986 · Cited by 1,082
Self-citationThe Evolution of Animal Domestication
Larson, G., & Fuller, D. Q. (2014) · Annual Review of Ecology, Evolution, and Systematics · doi:10.1146/annurev-ecolsys-110512-135813 · Cited by 640
Liang, C., Wang, Y., Zhu, Y., Tang, J., Hu, B., Liu, L., Ou, S., Wu, H., Sun, X., Chu, J., et al. (2014) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1321568111 · Cited by 522
Metadata
- Authors
- Uauy, C., Distelfeld, A., Fahima, T., Blechl, A., & Dubcovsky, J.
- Venue
- Science
- Published
- 2006-11-24
- Volume
- 314
- Issue
- 5803
- Pages
- 1298-1301
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W1983370441
- Cited by
- 1,602
- References
- 0
- FWCI
- 70.87
- Type
- journal article
- Language
- en
- Open access
- green
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- Uauy, C., Distelfeld, A., Fahima, T., Blechl, A., & Dubcovsky, J. (2006). A NAC Gene Regulating Senescence Improves Grain Protein, Zinc, and Iron Content in Wheat. Science. https://doi.org/10.1126/science.1133649
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