title: Genetic analysis of arsenic accumulation in maize using QTL mapping.
abstract: Arsenic (As) is a toxic heavy metal that can accumulate in crops and poses a threat to human health. The genetic mechanism of As accumulation is unclear. Herein, we used quantitative trait locus (QTL) mapping to unravel the genetic basis of As accumulation in a maize recombinant inbred line population derived from the Chinese crossbred variety Yuyu22. The kernels had the lowest As content among the different maize tissues, followed by the axes, stems, bracts and leaves. Fourteen QTLs were identified at each location. Some of these QTLs were identified in different environments and were also detected by joint analysis. Compared with the B73 RefGen v2 reference genome, the distributions and effects of some QTLs were closely linked to those of QTLs detected in a previous study; the QTLs were likely in strong linkage disequilibrium. Our findings could be used to help maintain maize production to satisfy the demand for edible corn and to decrease the As content in As-contaminated soil through the selection and breeding of As pollution-safe cultivars.
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.|Maize Research Institute, Chongqing Academy of Agricultural Sciences, Chongqing 401329, China.
authors.forename: Zhongjun
authors.initials: Z
authors.lastname: Fu
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Weihua
authors.initials: W
authors.lastname: Li
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Xing
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Mengmeng
authors.initials: M
authors.lastname: Xu
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Xiaoyang
authors.initials: X
authors.lastname: Liu
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Haochuan
authors.initials: H
authors.lastname: Li
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Yadong
authors.initials: Y
authors.lastname: Xue
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.
authors.forename: Zonghua
authors.initials: Z
authors.lastname: Liu
authors.affiliation: Key Laboratory of Wheat and Maize Crops Science, Collaborative Innovation Center of Henan Grain Crops, College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China.|Hubei Collaborative Innovation Center for Grain Industry, Yangtze University, Jingzhou 434023, China.
authors.forename: Jihua
authors.initials: J
authors.lastname: Tang
mesh_terms: D001151:Arsenic / Q000378:metabolism*; D002874:Chromosome Mapping; D032461:Chromosomes, Plant; D007178:Inbreeding; D009928:Organ Specificity; D040641:Quantitative Trait Loci; D019655:Quantitative Trait, Heritable; D003313:Zea mays / Q000235:genetics* / Q000378:metabolism*
chemical_list: D001151:Arsenic