Utilizing genetic variation and water management for cultivating low grain arsenic rice

G. J. Norton, T. J. Travis, A. Douglas, A. H. Price, M. H. Sumon, M. R. Islam

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Arsenic in rice grains poses a threat to human health for people that consume large quantities of rice. Numerous ways have been proposed to mitigate the accumulation of arsenic in rice grains. In this study a large number of rice varieties from the aus subgroup were screened for arsenic accumulation under conventional flooding as well as using the water management technique Alternate Wetting and Drying (AWD). These varieties were then sequenced to identify Single Nucleotide Polymorphisms (SNPs) and a SNP database was created to conduct genome wide association mapping to identify loci that control natural variation for arsenic accumulation. The AWD technique on average significantly reduced grain arsenic by ∼15% when compared to rice plants grown under flooded conditions. The genetic mapping study identified a number of loci involved in the accumulation of arsenic. These results indicate that AWD and breeding are potential ways to decrease rice grain arsenic.

Original languageEnglish
Title of host publicationArsenic Research and Global Sustainability
Subtitle of host publicationProceedings of the Sixth International Congress on Arsenic in the Environment, (As2016)
EditorsProsun Bhattacharya, Marie Vahter, Jerker Jarsjö, Jurate Kumpiene, Arslan Ahmad, Charlotte Sparrenbom, Gunnar Jacks, Marinus Eric Donselaar, Jochen Bundschuh, Ravi Naidu
PublisherCRC Press/Balkema
Pages289-290
Number of pages2
ISBN (Electronic)9781315629438
ISBN (Print)9781138029415
DOIs
Publication statusPublished - 1 Jun 2016
Event6th International Congress on Arsenic in the Environment, AS 2016 - Stockholm, Sweden
Duration: 19 Jun 201623 Jun 2016

Publication series

NameArsenic in the Environment - Proceedings
PublisherCRC Press
ISSN (Print)2154-6568

Conference

Conference6th International Congress on Arsenic in the Environment, AS 2016
CountrySweden
CityStockholm
Period19/06/1623/06/16

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  • Cite this

    Norton, G. J., Travis, T. J., Douglas, A., Price, A. H., Sumon, M. H., & Islam, M. R. (2016). Utilizing genetic variation and water management for cultivating low grain arsenic rice. In P. Bhattacharya, M. Vahter, J. Jarsjö, J. Kumpiene, A. Ahmad, C. Sparrenbom, G. Jacks, M. E. Donselaar, J. Bundschuh, & R. Naidu (Eds.), Arsenic Research and Global Sustainability: Proceedings of the Sixth International Congress on Arsenic in the Environment, (As2016) (pp. 289-290). [129] (Arsenic in the Environment - Proceedings). CRC Press/Balkema. https://doi.org/10.1201/b20466-140