Genotype × environment interaction on tocochromanol and plastochromanol-8 content in seeds of doubled haploids obtained from F1 hybrid black × yellow seeds of winter oilseed rape (Brassica napus L.).

• Autores: Aleksander Siger, Michał Michalak, Justyna Lembicz, Małgorzata Nogala-Kałucka, Teresa Cegielska-Taras, Laurencja Szała
• Localización: Journal of the science of food and agriculture, ISSN 0022-5142, Vol. 98, Nº 9, 2018, págs. 3263-3270
• Idioma: inglés
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• Resumen

  • The aim of the study was to determine the effect of genotype × environment interaction on the levels of α-, β-, γ- and δ-tocopherol (α-T, β-T, γ-T and δ-T, respectively) and plastochromanol-8 (PC-8) in seeds of 17 doubled haploids (DHs) obtained from the F1 hybrid derived from crossing black (DH H2 -26) × yellow (DH Z-114) seeds of winter oilseed rape.; Results: The content of tocopherols in the tested DH lines ranged from 415.6 to 540.1 mg kg-1 seeds, while PC-8 content ranged from 56.3 to 89.0 mg kg-1 seeds. The α-T/γ-T ratio reached a level of 0.78-1.29. Studies have shown that heritability for α-T, β-T, γ-T, total-T and PC-8 is mainly due to genotypic variation. For the δ-T homologue the level was dependent on environmental effect.; Conclusion: The obtained DH lines population of oilseed rape is characterized by high heritability coefficients for α-T, β-T, γ-T, total-T and PC-8 levels, which indicates a greater influence of genotype than the environment on the content of these compounds. Among all studied doubled haploids, seven DHs were selected which were characterized by stable contents of α-T, β-T, γ-T, δ-T and total-T with the simultaneous stable content of PC-8. © 2017 Society of Chemical Industry.; © 2017 Society of Chemical Industry.