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Quantitative trait loci conferring grain selenium nutrient in durum wheat × wild emmer wheat RIL population

Author

Listed:
  • Jun YAN

    (Key Laboratory of Coarse Cereal Processing in Ministry of Agriculture, School of Pharmacy and Bioengineering, Chengdu University, Chengdu, P.R. China)

  • Wen-Tao XUE

    (College of Agriculture, Guizhou University, Guiyang, P.R. China)

  • Rong-Zhi YANG

    (College of Agriculture, Guizhou University, Guiyang, P.R. China)

  • Hai-Bo QIN

    (State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, P.R. China)

  • Gang ZHAO

    (Key Laboratory of Coarse Cereal Processing in Ministry of Agriculture, School of Pharmacy and Bioengineering, Chengdu University, Chengdu, P.R. China)

  • Fahima TZION

    (Institute of Evolution, University of Haifa, Haifa, Israel)

  • Jian-Ping CHENG

    (College of Agriculture, Guizhou University, Guiyang, P.R. China)

Abstract

The genetic and phenotypic basis of grain selenium concentration (GSeC) and yield per plant (GSeY) was studied in a tetraploid wheat population consisting of 152 F6 recombinant inbred lines (RILs) derived from a cross between Triticum dicoccoides (accession G18-16) and durum wheat cultivar Langdon (LDN) grown under three different environments over 2 years. Wide genetic variation was found among RILs for GSeC and GSeY. A total of 15 QTL effects on 9 chromosomes associated with GSeC and GSeY were detected, with a logarithm od the odds (LOD) score ranging from ca. 3.2 to 11.7, explaining 1.4% to 18.6% of the phenotypic variation. Higher GSeC and GSeY were conferred by the G18-16 allele at 10 loci and by the LDN allele at 5 loci. Seven QTLs showed interactions with environmental conditions. Five genomic regions harbouring QTLs for grain Se concentrations and yields were selected for further marker-assisted selection programs, facilitating the use of wild alleles for improvement of elite wheat cultivars.

Suggested Citation

  • Jun YAN & Wen-Tao XUE & Rong-Zhi YANG & Hai-Bo QIN & Gang ZHAO & Fahima TZION & Jian-Ping CHENG, 2018. "Quantitative trait loci conferring grain selenium nutrient in durum wheat × wild emmer wheat RIL population," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 54(2), pages 52-58.
    • Handle: RePEc:caa:jnlcjg:v:54:y:2018:i:2:id:112-2016-cjgpb
    DOI: 10.17221/112/2016-CJGPB
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