Journal of Integrative Agriculture ›› 2014, Vol. 13 ›› Issue (11): 2322-2329.DOI: 10.1016/S2095-3119(13)60640-1

• 论文 • 上一篇    下一篇

Quantitative Trait Loci Associated with Micronutrient Concentrations in Two Recombinant Inbred Wheat Lines

 PU Zhi-en, YU Ma, HE Qiu-yi, CHEN Guo-yue, WANG Ji-rui, LIU Ya-xi, JIANG Qian-tao, LI Wei, DAI Shou-fen, WEI Yu-ming , ZHENG You-liang   

  1. 1、Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China
    2、College of Agronomy, Sichuan Agricultural University, Chengdu 611130, P.R.China
    3、School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P.R.China
  • 收稿日期:2013-08-15 出版日期:2014-11-06 发布日期:2014-11-14
  • 通讯作者: ZHENG You-liang, Tel: +86-835-2882007, Fax: +86-835-2883153, E-mail: ylzheng@sicau.edu.cn
  • 作者简介:PU Zhi-en, E-mail: puzhien@hotmail.com; YU Ma, E-mail: yuwen.0073@hotmail.com
  • 基金资助:

    This work was supported by the National Natural Science Foundation of China (31301318, 31230053 and 31171556) and the National Basic Research Program of China (2011CB100100).

Quantitative Trait Loci Associated with Micronutrient Concentrations in Two Recombinant Inbred Wheat Lines

 PU Zhi-en, YU Ma, HE Qiu-yi, CHEN Guo-yue, WANG Ji-rui, LIU Ya-xi, JIANG Qian-tao, LI Wei, DAI Shou-fen, WEI Yu-ming , ZHENG You-liang   

  1. 1、Triticeae Research Institute, Sichuan Agricultural University, Chengdu 611130, P.R.China
    2、College of Agronomy, Sichuan Agricultural University, Chengdu 611130, P.R.China
    3、School of Life Science and Engineering, Southwest University of Science and Technology, Mianyang 621010, P.R.China
  • Received:2013-08-15 Online:2014-11-06 Published:2014-11-14
  • Contact: ZHENG You-liang, Tel: +86-835-2882007, Fax: +86-835-2883153, E-mail: ylzheng@sicau.edu.cn
  • About author:PU Zhi-en, E-mail: puzhien@hotmail.com; YU Ma, E-mail: yuwen.0073@hotmail.com
  • Supported by:

    This work was supported by the National Natural Science Foundation of China (31301318, 31230053 and 31171556) and the National Basic Research Program of China (2011CB100100).

摘要: Micronutrient malnutrition affects over three billion people worldwide, especially women and children in developing countries. Increasing the bioavailable concentrations of essential elements in the edible portions of crops is an effective resolution to address this issue. To determine the genetic factors controlling micronutrient concentration in wheat, the quantitative trait locus (QTL) analysis for iron, zinc, copper, manganese, and selenium concentrations in two recombinant inbred line populations was performed. In all, 39 QTLs for five micronutrient concentrations were identified in this study. Of these, 22 alleles from synthetic wheat SHW-L1 and seven alleles from the progeny line of the synthetic wheat Chuanmai 42 showed an increase in micronutrient concentrations. Five QTLs on chromosomes 2A, 3D, 4D, and 5B found in both the populations showed significant phenotypic variation for 2-3 micronutrient concentrations. Our results might help understand the genetic control of micronutrient concentration and allow the utilization of genetic resources of synthetic hexaploid wheat for improving micronutrient efficiency of cultivated wheat by using molecular marker-assisted selection.

关键词: micronutrient concentration , synthetic hexaploid wheat , QTL

Abstract: Micronutrient malnutrition affects over three billion people worldwide, especially women and children in developing countries. Increasing the bioavailable concentrations of essential elements in the edible portions of crops is an effective resolution to address this issue. To determine the genetic factors controlling micronutrient concentration in wheat, the quantitative trait locus (QTL) analysis for iron, zinc, copper, manganese, and selenium concentrations in two recombinant inbred line populations was performed. In all, 39 QTLs for five micronutrient concentrations were identified in this study. Of these, 22 alleles from synthetic wheat SHW-L1 and seven alleles from the progeny line of the synthetic wheat Chuanmai 42 showed an increase in micronutrient concentrations. Five QTLs on chromosomes 2A, 3D, 4D, and 5B found in both the populations showed significant phenotypic variation for 2-3 micronutrient concentrations. Our results might help understand the genetic control of micronutrient concentration and allow the utilization of genetic resources of synthetic hexaploid wheat for improving micronutrient efficiency of cultivated wheat by using molecular marker-assisted selection.

Key words: micronutrient concentration , synthetic hexaploid wheat , QTL