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A major quantitative trait locus controlling cadmium translocation in rice (Oryza sativa).
New Phytol. 2009; 182(3):644-653.NP

Abstract

The trait of low cadmium (Cd) accumulation in brown rice (Oryza sativa) is important for food safety. An effective way to reduce Cd accumulation in the grain is to control Cd transfer from the roots to the shoots. Here, we investigated genotypic variation in the shoot Cd concentration among 146 accessions from a rice core collection and performed a quantitative trait locus (QTL) analysis to determine the loci controlling shoot Cd accumulation. Furthermore, we physiologically characterized the two accessions used for QTL analysis. Large genotypic variation (13-fold) in the shoot Cd concentration was found. A major QTL was detected on chromosome 11 using a F2 population derived from Badari Dhan (a high-Cd accession) and Shwe War (a low-Cd accession). This QTL explained 16.1% of the phenotypic variation in Cd accumulation. Furthermore, this QTL was confirmed by analysis of advanced progeny. Physiological studies showed that Badari Dhan and Shwe War did not differ in uptake of Cd by the roots, but differed greatly in the translocation of Cd from the roots to the shoots. Taken together, our findings suggest that the major QTL detected is responsible for the translocation of Cd from the roots to the shoots.

Authors+Show Affiliations

Research Institute for Bioresources, Okayama University, Chuo 2-20-1, Kurashiki 710-0046, Japan.Institute of Society for Techno-innovation of Agriculture, Forestry, and Fisheries, Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan.Research Institute for Bioresources, Okayama University, Chuo 2-20-1, Kurashiki 710-0046, Japan.Institute of Society for Techno-innovation of Agriculture, Forestry, and Fisheries, Kamiyokoba, Tsukuba, Ibaraki 305-0854, Japan.National Institute of Agrobiological Sciences, Tsukuba, Ibaraki 305-8602, Japan.Research Institute for Bioresources, Okayama University, Chuo 2-20-1, Kurashiki 710-0046, Japan.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

19309445

Citation

Ueno, D, et al. "A Major Quantitative Trait Locus Controlling Cadmium Translocation in Rice (Oryza Sativa)." The New Phytologist, vol. 182, no. 3, 2009, pp. 644-653.
Ueno D, Kono I, Yokosho K, et al. A major quantitative trait locus controlling cadmium translocation in rice (Oryza sativa). New Phytol. 2009;182(3):644-653.
Ueno, D., Kono, I., Yokosho, K., Ando, T., Yano, M., & Ma, J. F. (2009). A major quantitative trait locus controlling cadmium translocation in rice (Oryza sativa). The New Phytologist, 182(3), 644-653. https://doi.org/10.1111/j.1469-8137.2009.02784.x
Ueno D, et al. A Major Quantitative Trait Locus Controlling Cadmium Translocation in Rice (Oryza Sativa). New Phytol. 2009;182(3):644-653. PubMed PMID: 19309445.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A major quantitative trait locus controlling cadmium translocation in rice (Oryza sativa). AU - Ueno,D, AU - Kono,I, AU - Yokosho,K, AU - Ando,T, AU - Yano,M, AU - Ma,J F, Y1 - 2009/02/27/ PY - 2009/3/25/entrez PY - 2009/3/25/pubmed PY - 2009/7/9/medline SP - 644 EP - 653 JF - The New phytologist JO - New Phytol VL - 182 IS - 3 N2 - The trait of low cadmium (Cd) accumulation in brown rice (Oryza sativa) is important for food safety. An effective way to reduce Cd accumulation in the grain is to control Cd transfer from the roots to the shoots. Here, we investigated genotypic variation in the shoot Cd concentration among 146 accessions from a rice core collection and performed a quantitative trait locus (QTL) analysis to determine the loci controlling shoot Cd accumulation. Furthermore, we physiologically characterized the two accessions used for QTL analysis. Large genotypic variation (13-fold) in the shoot Cd concentration was found. A major QTL was detected on chromosome 11 using a F2 population derived from Badari Dhan (a high-Cd accession) and Shwe War (a low-Cd accession). This QTL explained 16.1% of the phenotypic variation in Cd accumulation. Furthermore, this QTL was confirmed by analysis of advanced progeny. Physiological studies showed that Badari Dhan and Shwe War did not differ in uptake of Cd by the roots, but differed greatly in the translocation of Cd from the roots to the shoots. Taken together, our findings suggest that the major QTL detected is responsible for the translocation of Cd from the roots to the shoots. SN - 1469-8137 UR - https://www.unboundmedicine.com/medline/citation/19309445/A_major_quantitative_trait_locus_controlling_cadmium_translocation_in_rice__Oryza_sativa__ DB - PRIME DP - Unbound Medicine ER -