Genotypic variability and genotype by environment interactions in oil and fatty acids in high, intermediate, and low oleic acid peanut genotypes

J Agric Food Chem. 2010 May 26;58(10):6257-63. doi: 10.1021/jf903728e.


Variability of genotype and genotype x environment (G x E) interactions for fatty acids are important to develop high-oleic types in peanut varietal improvement programs. The objective of this study was to determine the variation in fatty acid composition among peanut genotypes and G x E interactions of fatty acids in three groups of genotypes with high, intermediate, and low-oleic acid. Twenty-one genotypes were tested in three environments consisting of two rainy seasons and one dry season. The results indicated that G x E interactions were significant for biomass, pod yield, and harvest index and also for oleic, linoleic acids, and O/L ratio. G x E interactions were less important than genotypic main effect. For oleic acid, significant interactions were found in the intermediate and low-oleic groups only. Therefore, selection for high-oleic trait in peanut breeding programs should be effective.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Arachis / chemistry
  • Arachis / genetics*
  • Arachis / growth & development
  • Breeding
  • Environment*
  • Fatty Acids / analysis*
  • Genetic Variation
  • Genotype*
  • Oleic Acid / analysis*
  • Peanut Oil
  • Plant Oils / analysis*
  • Plant Oils / chemistry
  • Seasons


  • Fatty Acids
  • Peanut Oil
  • Plant Oils
  • Oleic Acid