Genetic structure and essential oil composition in wild populations of Salvia multicaulis Vahl. (June 2021)

• Record Type: Journal Article
• Authors: Talebi, Seyed Mehdi; Askary, Mehry; Khalili, Nariman; Matsyura, Alex; Ghorbanpour, Mansour; Kariman, Khalil
• Is Part Of: Biochemical systematics and ecology. Volume 96(2021)
• Publication Date: 2021-06
• Subjects: Chemical polymorphism -- Salvia multicaulis -- Genetic diversity -- Infraspecific variation -- ISSR; Chemotaxonomy -- Periodicals; Biochemical variation -- Periodicals; Ecology -- Periodicals; Biochemistry -- Periodicals; Ecology -- Periodicals; Chimiotaxinomie -- Périodiques; Variation biochimique -- Périodiques; Écologie -- Périodiques; 578.012
• DOI: 10.1016/j.bse.2021.104269
• Languages: English
• ISSNs: 0305-1978

Abstract

Abstract: The phytochemical study on ten populations of Salvia multicaulis Vahl. revealed that their essential oil qualitative profiles contained a significant amount of monoterpene hydrocarbons, which were the most abundant compounds. Besides, α-Pinene was the major constituent in all studied populations' essential oils. Significant correlations were observed between edaphic parameters and some major essential oil compounds. According to clustering analyses of the chemical data, the S. multicaulis populations were divided into three chemotypes: β-caryophyllene, camphene and camphor, and limonene. The population genetics study showed significant molecular differences among the populations. The Mantel test indicated a significant positive correlation between the geographical distances and genetic diversity, exhibiting a low amount of gene flow and a considerable genetic differentiation value. We also detected four genotypes based on the Nei's genetic distance and structure analysis. The identified chemical and genetic similarities/differences among these populations were correlated with edaphic parameters and geographic distances, suggesting that environmental factors are the primary drivers of the chemical polymorphism of essential oils in S. multicaulis populations. Highlights: Essential oil composition and genetic diversity were determined in wild populations of Salvia multicaulis. According to GC/MS analysis α-pinene was the most abundant compound among the populations. The examined populations were divided into three chemotypes: β–caryophyllene, camphene and camphor, and limonene. The genetic diversity parameters and polymorphism were highly different among the populations. A significant positive correlation was found between geographical distances and genetic diversity.