Euphytica

, Volume 97, Issue 1, pp 113–116

Sunflower mutant containing high levels of palmitic acid in high oleic background

  • José M. Fernández-Martínez
  • Manuel Mancha
  • Jorge Osorio
  • Rafael Garcés
Article

DOI: 10.1023/A:1003045726610

Cite this article as:
Fernández-Martínez, J.M., Mancha, M., Osorio, J. et al. Euphytica (1997) 97: 113. doi:10.1023/A:1003045726610

Abstract

A new sunflower mutant, CAS-12, was obtained, which has both high palmitic (≈30%) and high oleic acid contents, and also a substantial amount of palmitoleic acid (≈7%). The mutant was selected after X-ray irradiation of dry seeds of the inbred line BSD-2-423, which had normal palmitic (≈3%) and high oleic (≈88%) acid levels. The increase of palmitic and palmitoleic acids occurred at the expense of the oleic acid content, which decreased to around 55% in respect to the original line. Linoleic acid content is always under 5%. Palmitic and palmitoleic acid levels were similar to those of the high palmitic mutant CAS-5 obtained in a previous programme from a low oleic line isogenic to BSD-2-423 using a similar mutagenic treatment. In that previous programme we also selected three high stearic acid mutants using chemical mutagenic treatment on the same sunflower line (RDF-1-532). We attempted to obtain mutants in other lines but were unsuccessful. The isolation of similar mutants in isogenic parental lines illustrates the importance of the genetic background in the development of specific mutants with an altered seed oil fatty acid composition. The oil of this mutant will increase the range of potential uses of sunflower oil.

Helianthus annuusfatty acidspalmitic acidX-ray mutagenesisseed oilsunflower

Copyright information

© Kluwer Academic Publishers 1997

Authors and Affiliations

  • José M. Fernández-Martínez
    • 1
  • Manuel Mancha
    • 2
  • Jorge Osorio
    • 2
  • Rafael Garcés
    • 2
  1. 1.Instituto de Agricultura Sostenible (CSIC)CórdobaSpain
  2. 2.Instituto de la Grasa (CSIC)SevillaSpain