The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Major genes for Na+ exclusion, Nax1 and Nax2 (wheat HKT1;4 and HKT1;5), decrease Na+ accumulation in bread wheat leaves under saline and waterlogged conditions
Open accessAbstract
Two major genes for Na(+) exclusion in durum wheat, Nax1 and Nax2, that were previously identified as the Na(+) transporters TmHKT1;4-A2 and TmHKT1;5-A, were transferred into bread wheat in order to increase its capacity to restrict the accumulation of Na(+) in leaves. The genes were crossed from tetraploid durum wheat (Triticum turgidum ssp. durum) into hexaploid bread wheat (Triticum aestivum) by interspecific crossing and marker-assisted selection for hexaploid plants containing one or both genes. Nax1 decreased the leaf blade Na(+) concentration by 50%, Nax2 decreased it by 30%, and both genes together decreased it by 60%. The signature phenotype of Nax1, the retention of Na(+) in leaf sheaths resulting in a high Na(+) sheath:blade ratio, was found in the Nax1 lines. This conferred an extra advantage under a combination of waterlogged and saline conditions. The effect of Nax2 on lowering the Na(+) concentration in bread wheat was surprising as this gene is very similar to the TaHKT1;5-D Na(+) transporter already present in bread wheat, putatively at the Kna1 locus. The results indicate that both Nax genes have the potential to improve the salt tolerance of bread wheat.
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Cites
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Cited by
Gupta, B., & Huang, B. (2014) · International Journal of Genomics · doi:10.1155/2014/701596 · Cited by 2,105
The Role of Na+ and K+ Transporters in Salt Stress Adaptation in Glycophytes
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Wheat grain yield on saline soils is improved by an ancestral Na+ transporter gene
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Metadata
- Authors
- James, R. A., Blake, C., Byrt, C. S., & Munns, R.
- Venue
- Journal of Experimental Botany
- Publisher
- Oxford University Press (OUP)
- Published
- 2011-02-28
- Volume
- 62
- Issue
- 8
- Pages
- 2939-2947
- ISSN
- 0022-0957 (ISSN-L)
- 1460-2431
- OpenAlex
- W2168887131
- Cited by
- 490
- References
- 36
- FWCI
- 15.62
- Type
- journal article
- Language
- en
- Open access
- hybrid
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- CoChat. (2026). Citation check: Major genes for Na+ exclusion, Nax1 and Nax2 (wheat HKT1;4 and HKT1;5), decrease Na+ accumulation in bread wheat leaves under saline and waterlogged conditions. https://app.cochat.ai/papers/10.1093/jxb/err003
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- James, R. A., Blake, C., Byrt, C. S., & Munns, R. (2011). Major genes for Na+ exclusion, Nax1 and Nax2 (wheat HKT1;4 and HKT1;5), decrease Na+ accumulation in bread wheat leaves under saline and waterlogged conditions. Journal of Experimental Botany. https://doi.org/10.1093/jxb/err003
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