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A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku.
Theor Appl Genet. 2010 Apr; 120(6):1175-82.TA

Abstract

The heavy metal cadmium (Cd) is highly toxic to humans and can enter food chains from contaminated crop fields. Understanding the molecular mechanisms of Cd accumulation in crop species will aid production of safe Cd-free food. Here, we identified a single recessive gene that allowed higher Cd translocation in rice, and also determined the chromosomal location of the gene. The Cd hyperaccumulator rice variety Cho-Ko-Koku showed 3.5-fold greater Cd translocation than the no-accumulating variety Akita 63 under hydroponics. Analysis of an F(2) population derived from these cultivars gave a 1:3 segregation ratio for high:low Cd translocation. This indicates that a single recessive gene controls the high Cd translocation phenotype. A QTL analysis identified a single QTL, qCdT7, located on chromosome 7. On a Cd-contaminated field, Cd accumulation in the F(2) population showed continuous variation with considerable transgression. Three QTLs for Cd accumulation were identified and the peak of the most effective QTL mapped to the same region as qCdT7. Our data indicate that Cd translocation mediated by the gene on qCdT7 plays an important role in Cd accumulation on contaminated soil.

Authors+Show Affiliations

Laboratory of Plant Genetics and Breeding, Department of Biological Production, Faculty of Bioresource Sciences, Akita Prefectural University, Kaidoubata-Nishi 241-438, Shimoshinjyo-Nakano, Akita, 010-0195, Japan.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

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

Language

eng

PubMed ID

20039013

Citation

Tezuka, Kouichi, et al. "A Single Recessive Gene Controls Cadmium Translocation in the Cadmium Hyperaccumulating Rice Cultivar Cho-Ko-Koku." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 120, no. 6, 2010, pp. 1175-82.
Tezuka K, Miyadate H, Katou K, et al. A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku. Theor Appl Genet. 2010;120(6):1175-82.
Tezuka, K., Miyadate, H., Katou, K., Kodama, I., Matsumoto, S., Kawamoto, T., Masaki, S., Satoh, H., Yamaguchi, M., Sakurai, K., Takahashi, H., Satoh-Nagasawa, N., Watanabe, A., Fujimura, T., & Akagi, H. (2010). A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 120(6), 1175-82. https://doi.org/10.1007/s00122-009-1244-6
Tezuka K, et al. A Single Recessive Gene Controls Cadmium Translocation in the Cadmium Hyperaccumulating Rice Cultivar Cho-Ko-Koku. Theor Appl Genet. 2010;120(6):1175-82. PubMed PMID: 20039013.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - A single recessive gene controls cadmium translocation in the cadmium hyperaccumulating rice cultivar Cho-Ko-Koku. AU - Tezuka,Kouichi, AU - Miyadate,Hidenori, AU - Katou,Kazunao, AU - Kodama,Ikuko, AU - Matsumoto,Shinichi, AU - Kawamoto,Tomohiko, AU - Masaki,Satoshi, AU - Satoh,Hideki, AU - Yamaguchi,Masayuki, AU - Sakurai,Kenji, AU - Takahashi,Hidekazu, AU - Satoh-Nagasawa,Namiko, AU - Watanabe,Akio, AU - Fujimura,Tatsuhito, AU - Akagi,Hiromori, Y1 - 2009/12/29/ PY - 2009/09/18/received PY - 2009/12/08/accepted PY - 2009/12/30/entrez PY - 2009/12/30/pubmed PY - 2010/6/3/medline SP - 1175 EP - 82 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 120 IS - 6 N2 - The heavy metal cadmium (Cd) is highly toxic to humans and can enter food chains from contaminated crop fields. Understanding the molecular mechanisms of Cd accumulation in crop species will aid production of safe Cd-free food. Here, we identified a single recessive gene that allowed higher Cd translocation in rice, and also determined the chromosomal location of the gene. The Cd hyperaccumulator rice variety Cho-Ko-Koku showed 3.5-fold greater Cd translocation than the no-accumulating variety Akita 63 under hydroponics. Analysis of an F(2) population derived from these cultivars gave a 1:3 segregation ratio for high:low Cd translocation. This indicates that a single recessive gene controls the high Cd translocation phenotype. A QTL analysis identified a single QTL, qCdT7, located on chromosome 7. On a Cd-contaminated field, Cd accumulation in the F(2) population showed continuous variation with considerable transgression. Three QTLs for Cd accumulation were identified and the peak of the most effective QTL mapped to the same region as qCdT7. Our data indicate that Cd translocation mediated by the gene on qCdT7 plays an important role in Cd accumulation on contaminated soil. SN - 1432-2242 UR - https://www.unboundmedicine.com/medline/citation/20039013/A_single_recessive_gene_controls_cadmium_translocation_in_the_cadmium_hyperaccumulating_rice_cultivar_Cho_Ko_Koku_ L2 - https://dx.doi.org/10.1007/s00122-009-1244-6 DB - PRIME DP - Unbound Medicine ER -