Significantly lower content of antinutritional soluble oxalate in amaranth mutant lines developed by radiation mutagenesis

gamma-irradiation induced mutant lines by capillary isotachophoresis and compared to their non-irradiated reference samples 'Ficha'
(Amaranthus cruentus L.) and interspecific hybrid 'K-433' (Amaranthus hypochondriacus × Amaranthus hybridus) during the cultivation
period 2011–2014. The canonical discriminant analysis demonstrated significant differences among mutants and their reference
counterparts during multiyear evaluation. Two-way ANOVA approach identified the mutant line D282 as variant with the significantly
and long-term lowest soluble oxalate concentration in comparison to respective reference samples as well as other mutant lines.
Decrease in a content of this antinutritional factor could be a possible effect of radiation-induced mutation event(s) in the D282 line
genome. Therefore, this mutant line might be a good matrix in the further breeding programme of this naturally gluten-free
pseudocereal.