Rice-arsenate interactions in hydroponics : a three-gene model for tolerance

In this study, the genetic mapping of the tolerance of root growth to 13.3 muM arsenate [As(V)] using the BalaxAzucena population is improved, and candidate genes for further study are identified. A remarkable three-gene model of tolerance is advanced, which appears to involve epistatic interaction...

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Veröffentlicht in:Journal of experimental botany. - 1985. - 59(2008), 8 vom: 01., Seite 2277-84
1. Verfasser: Norton, Gareth J (VerfasserIn)
Weitere Verfasser: Nigar, Meher, Williams, Paul N, Dasgupta, Tapash, Meharg, Andrew A, Price, Adam H
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2008
Zugriff auf das übergeordnete Werk:Journal of experimental botany
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Arsenates Phosphates arsenic acid N7CIZ75ZPN
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520 |a In this study, the genetic mapping of the tolerance of root growth to 13.3 muM arsenate [As(V)] using the BalaxAzucena population is improved, and candidate genes for further study are identified. A remarkable three-gene model of tolerance is advanced, which appears to involve epistatic interaction between three major genes, two on chromosome 6 and one on chromosome 10. Any combination of two of these genes inherited from the tolerant parent leads to the plant having tolerance. Lists of potential positional candidate genes are presented. These are then refined using whole genome transcriptomics data and bioinformatics. Physiological evidence is also provided that genes related to phosphate transport are unlikely to be behind the genetic loci conferring tolerance. These results offer testable hypotheses for genes related to As(V) tolerance that might offer strategies for mitigating arsenic (As) accumulation in consumed rice 
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700 1 |a Williams, Paul N  |e verfasserin  |4 aut 
700 1 |a Dasgupta, Tapash  |e verfasserin  |4 aut 
700 1 |a Meharg, Andrew A  |e verfasserin  |4 aut 
700 1 |a Price, Adam H  |e verfasserin  |4 aut 
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