title: Virgin olive oil phenolic profile and variability in progenies from olive crosses.
abstract: BACKGROUND
  The progressive transformation of olive growing and the increasing demands for high-quality monovarietal virgin olive oil (VOO) have triggered interest in olive breeding programs, in which the evaluation of the new genotypes is the basis for obtaining new olive cultivars. In this work, the phenolic composition of VOOs from two progenies from crosses between 'Arbequina', 'Arbosana' and 'Sikitita' has been evaluated along two years.
  
  
  RESULTS
  A higher degree of variation was observed in segregating population as compared to genitors. The results also showed that the variability within crosses constitutes the major contribution to total variance for all considered parameters (>92% of total sum of squares). All compounds under study were present in oils obtained in both years; however, clear differences in their concentrations were observed between years.
  
  
  CONCLUSIONS
  Olive breeding can indeed provide genotypes that produce oils with improved phenolic profiles as compared to traditional cultivars. In addition, the data showed that selection as a function of tyrosol content could be achieved in only one crop year. Finally, p-coumaric acid was the unique component able to discriminate between both crop years under study.
authors.affiliation: Laboratory of Olive Oil, Lebanese Agricultural Research Institute, Tal Amara, Bekaa, Lebanon. mriachy@lari.gov.lb
authors.forename: Milad
authors.initials: M
authors.lastname: El Riachy
authors.forename: Feliciano
authors.initials: F
authors.lastname: Priego-Capote
authors.forename: Lorenzo
authors.initials: L
authors.lastname: León
authors.forename: María Dolores
authors.initials: MD
authors.lastname: Luque de Castro
authors.forename: Luis
authors.initials: L
authors.lastname: Rallo
mesh_terms: D001947:Breeding; D003433:Crosses, Genetic; D014644:Genetic Variation; D005838:Genotype; D031658:Olea / Q000235:genetics* / Q000378:metabolism; D000069463:Olive Oil; D010636:Phenols / Q000032:analysis / Q000378:metabolism*; D010938:Plant Oils / Q000737:chemistry / Q000378:metabolism*
chemical_list: D000069463:Olive Oil; D010636:Phenols; D010938:Plant Oils