title: Variation in Essential Oil Yield and Composition of Dorema aucheri Boiss., an Endemic Medicinal Plant Collected from Wild Populations in Natural Habitats.
abstract: In the present research, variability in essential oil (EO) composition of five Dorema aucheri populations collected from natural habitats in different regions of Iran, were investigated. The EO content of populations varied from 0.28 to 0.68%. According to gas chromatography/mass spectrometry analysis, β-caryophyllene (7.17 - 35.73%), thymol (23.45 - 29.64%), β-gurjunene (2.58 - 5.89%), carvacrol (1.32 - 2.67%) and cuparene (1.97 - 2.98%) were the major components. Hierarchical cluster, principal component and canonical correspondence analyses classified the studied populations into three groups based on major EO components. The environmental parameters of the collected sites were also evaluated. According to the results, it might be suggested that sandy soils with high mean annual precipitation were major environmental factors influencing the amount of β-caryophyllene, while thymol, cuparene and caryophyllen oxide increased in silty and clay soils. Finally, the population collected in high altitudes and clay soils had higher amount of β-gurjunene.
authors.affiliation: Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156 83111, Iran.
authors.forename: Abolghasem
authors.initials: A
authors.lastname: Akbarian
authors.affiliation: Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156 83111, Iran.
authors.forename: Mehdi
authors.initials: M
authors.lastname: Rahimmalek
authors.affiliation: Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, 84156 83111, Iran.
authors.forename: Mohammad Reza
authors.initials: MR
authors.lastname: Sabzalian
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry*; D010946:Plants, Medicinal / Q000737:chemistry*; D025341:Principal Component Analysis
chemical_list: D009822:Oils, Volatile
keywords: 
  Dorema
  ; Environmental factors; Essential oil; GC/MS; Multivariate analysis