Effect of genetic background on the stability of sunflower fatty acid composition in different high oleic mutations
BACKGROUND: The effect of genetic background on the stability of fatty acid composition in sunflower near isogenic lines (NILs) carrying high-oleic Pervenets (P) or high-oleicNM1mutationswas studied. Thematerialswere field-tested in different locations and at different sowing dates to evaluate a wide range of environmental conditions. Relationships were established between the fatty acids and theminimum night temperature (MNT) and the response was characterized. RESULTS: A genetic background effect for the fatty acid compositionwas found in both groups of NILs. The NM1-NILs showed an oleic level higher than 910 g kg−1 and theyweremore stable across environmentswith a zero or lowdependence on the genetic background; on the other hand, high oleic materials bearing the P mutation showed lower levels of oleic acid, with a higher variation in fatty acid composition and a highly significant dependence on the genetic background. CONCLUSION: The NM1 mutation is the best option to develop ultra-high oleic sunflower oil that is stable across environments and genetic backgrounds,making its agronomical production more efficient and predictable.
| Main Authors: | , , , , , |
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| Format: | info:ar-repo/semantics/artículo biblioteca |
| Language: | eng |
| Published: |
Wiley
2018
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| Subjects: | Helianthus Annuus, Acido Oléico, Mutación, Acidos Grasos, Fatty Acids, Mutation, Oleic Acid, Girasol, Alto Oleico, NM1 Mutation, Genetic Background, Sunflower, |
| Online Access: | http://hdl.handle.net/20.500.12123/2880 https://onlinelibrary.wiley.com/doi/abs/10.1002/jsfa.8924?af=R& https://doi.org/10.1002/jsfa.8924 |
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