Research Article Open Access

New Spring Wheat Mutation Resources with Improved Grain Quality, Metals Bioavailability and Yield Components

Saule Kenzhebayeva1, Alfia Abekova2, Guoping Zhang3, Dinara Zharassova1, Fei Dai3, Nargul Omirbekova1 and Dauren Tashenev1
  • 1 Kazakh National University the Named After Al-Farabi, Almaty, Kazakhstan
  • 2 Kazakh Institute of Agricultural and Breeding, Almaty Region, Kazakhstan
  • 3 Agronomy Department, Zhejiang University, Zijinggang Campus, China

Abstract

Genetic variability in micronutrients is limited in wheat varieties. To broaden variation, seeds of cv. Eritrospermum-35 were irradiated with 100 and 200 Gy using 60Co, the treated seeds were grown to M7 generation with successive selection of the highest yield lines in each generation. Selected lines were evaluated for yield and grain quality traits such as iron, zinc and phytic acid concentrations, calculation of molar ratios of PA:Fe and PA:Zn. A number of mutant lines had 2 to 3 times more iron and zinc concentrations and lower phytic acid concentration (1.1-3.5 times) and higher protein content (11.2-12.4%) relative to the parent were identified. Some M7 lines showed significantly larger grain weight (1.3-1.5 times) and number per spike (2.0-2.1 times) than the parent. There were significant correlations between zinc and iron concentrations, between grain protein content, zinc, iron and phytic acid concentrations and grain weight per spike, mainly in 100 Gy-dosed lines. The TaPhyllc cDNAs nucleotide and protein sequence similarities between parent and these M7 lines varied from 28.2% and 30.2% to 45.7% and 56.5%, respectively. The results clearly indicate that variability in grain nutrients and metals bioavailability in mutation resource is potential in wheat improving nutritional outcomes and overcome malnutrition.

American Journal of Agricultural and Biological Sciences
Volume 12 No. 4, 2017, 167-181

DOI: https://doi.org/10.3844/ajabssp.2017.167.181

Submitted On: 4 July 2017 Published On: 2 January 2018

How to Cite: Kenzhebayeva, S., Abekova, A., Zhang, G., Zharassova, D., Dai, F., Omirbekova, N. & Tashenev, D. (2017). New Spring Wheat Mutation Resources with Improved Grain Quality, Metals Bioavailability and Yield Components. American Journal of Agricultural and Biological Sciences, 12(4), 167-181. https://doi.org/10.3844/ajabssp.2017.167.181

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Keywords

  • Triticum aestivum
  • Correlation
  • Grain Nutrients Concentrations
  • Yield Components
  • TaPhyllc Multiple Inositol Phosphate Phosphatases cDNA Sequence