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Grain hardness in triticale: a physical and molecular evaluation

Author

Listed:
  • Veronika Kselíková

    (Department of Experimental Biology, Faculty of Science, Masaryk University, Brno, Czech Republic)

  • Tomáš Vyhnánek

    (Department of Plant Biology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Pavel Hanáček

    (Department of Plant Biology, Faculty of AgriSciences, Mendel University in Brno, Brno, Czech Republic)

  • Petr Martinek

    (Agrotest fyto, Ltd., Kroměříž, Czech Republic)

Abstract

Grain hardness is an important quality trait of cereals. In the present work, the particle size index (PSI) was used to assess the variability in grain hardness of thirteen triticale genotypes, three wheat genotypes and one rye genotype grown in two subsequent seasons. The PSI values of the triticale samples ranged between 7.7 to 19.2%, representing a medium hard to a very hard grain. Moreover, the sequencing of genes in the Hardness (Ha) locus revealed a limited genetic variability in the grain hardness genes, namely secaloindoline-a (Sina) and secaloindoline-b (Sinb). Two possible new allelic variants were identified, one for each of the secaloindoline genes. The existing variability in the grain hardness as well as polymorphisms in its candidate genes are a good starting point for efforts in breeding new varieties of triticale with improved grain hardness.

Suggested Citation

  • Veronika Kselíková & Tomáš Vyhnánek & Pavel Hanáček & Petr Martinek, 2020. "Grain hardness in triticale: a physical and molecular evaluation," Czech Journal of Genetics and Plant Breeding, Czech Academy of Agricultural Sciences, vol. 56(3), pages 102-110.
    • Handle: RePEc:caa:jnlcjg:v:56:y:2020:i:3:id:96-2019-cjgpb
    DOI: 10.17221/96/2019-CJGPB
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    References listed on IDEAS

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    1. Marie HRUŠKOVÁ & Ivan ŠVEC, 2009. "Wheat hardness in relation to other quality factors," Czech Journal of Food Sciences, Czech Academy of Agricultural Sciences, vol. 27(4), pages 240-248.
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