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.

丹参10个居群的植物化学研究。揭示了他们的精油定性特征包含大量的单萜碳氢化合物，它们是最丰富的化合物。此外，α-P烯是所有研究人群的精油中的主要成分。观察到edaphic参数和一些主要的精油化合物之间的显着相关性。根据化学数据的聚类分析，S。multicaulis种群分为三种化学型：β-石竹烯，樟脑和樟脑以及柠檬烯。人口遗传学研究表明，人口之间存在显着的分子差异。Mantel测试表明地理距离与遗传多样性之间存在显着的正相关，显示出少量的基因流和相当大的遗传分化值。我们还根据Nei的遗传距离和结构分析检测了四种基因型。这些种群之间确定的化学和遗传相似性/差异与嗜盐参数和地理距离相关，这表明环境因素是多花葡萄球菌种群精油化学多态性的主要驱动因素。