caa a22 4500 445324694 CHVBK 20180317142716.0 cr unu---uuuuu 170323e20110701xx s 000 0 eng 10.1007/s10681-011-0346-9 doi (NATIONALLICENCE)springer-10.1007/s10681-011-0346-9 Identification of quantitative trait loci for Cd and Zn concentrations of brown rice grown in Cd-polluted soils [Elektronische Daten] [Xiaoqin Zhang, Guoping Zhang, Longbiao Guo, Huizhong Wang, Dali Zeng, Guojun Dong, Qian Qian, Dawei Xue] Low grain cadmium (Cd) and high grain zinc (Zn) rice cultivars have become the current rice breeding objectives. However, the genetic control of Cd and Zn concentrations in brown rice remains poorly understood, especially when grown in Cd-contaminated soil. In this study, quantitative trait loci (QTLs) associated with grain Cd and Zn concentrations and Cd/Zn ratio were identified using a doubled haploid population derived from a cross between japonica JX17 and indica ZYQ8 rice cultivars. Three and two QTLs were detected for Cd and Zn concentration in brown rice, respectively. Two QTLs associated with grain Cd/Zn ratio on chromosomes 3 and 6 were initially mapped. These QTLs accounted for 10.83-41.66% of the total variance of the three traits measured. Only one common locus on chromosome 6 was found for Cd concentration and Cd/Zn ratio. The lack of co-location of the QTLs for Cd and Zn concentrations in this mapping population suggests different genetic mechanisms. In summary, our results provide insight into the genetic basis of rice grain Cd and Zn accumulation; the isolated QTLs may be useful for marker-assisted selection and identification of genes associated with Cd and Zn accumulation in rice. Springer Science+Business Media B.V., 2011 Rice nationallicence Quantitative trait loci nationallicence Cd nationallicence Zn nationallicence Concentration nationallicence Zhang Xiaoqin College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut Zhang Guoping Agronomy Department, Zhejiang University, 310029, Hangzhou, China aut Guo Longbiao State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut Wang Huizhong College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut Zeng Dali State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut Dong Guojun State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut Qian Qian College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut Xue Dawei College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut Euphytica Springer Netherlands 180/2(2011-07-01), 173-179 0014-2336 180:2<173 2011 180 10681 https://doi.org/10.1007/s10681-011-0346-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10681-011-0346-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Zhang Xiaoqin College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut NATIONALLICENCE 700 1- Zhang Guoping Agronomy Department, Zhejiang University, 310029, Hangzhou, China aut NATIONALLICENCE 700 1- Guo Longbiao State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut NATIONALLICENCE 700 1- Wang Huizhong College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut NATIONALLICENCE 700 1- Zeng Dali State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut NATIONALLICENCE 700 1- Dong Guojun State Key Laboratory of Rice Biology, China National Rice Research Institute, 310006, Hangzhou, China aut NATIONALLICENCE 700 1- Qian Qian College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut NATIONALLICENCE 700 1- Xue Dawei College of Life and Environment Sciences, Hangzhou Normal University, 310036, Hangzhou, China aut NATIONALLICENCE 773 0- Euphytica Springer Netherlands 180/2(2011-07-01), 173-179 0014-2336 180:2<173 2011 180 10681 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer