Studies on artemisinin, morphotypic and genetic characteristics of seventeen species of Artemisia growing in Indian Himalayan Region
Seventeen species of Artemisia L. growing in the Indian Himalayan region were investigated for artemisinin content, morphological and genetic characters. During the investigation, artemisinin content was found to be in the range of trace to 0.12%. The highest was in A. dracunculus (0.12%) and A. roxburghiana (0.12%). The essential oil content was found in the range of 0.03-1.5%, A. dracunculus showed 1.5% oil (w/v) followed by A. nilagirica (0.6%) and A. maritima (0.6%). The AFLP analysis revealed 25.4% (Hind-ACC & Mse-CAC) to 67.38% (Hind-ACA & Mse-CAG) polymorphism while overall it was 51%. The dendrogram generated from AFLP data classified 8 species in one cluster (I) and 9 in another (II). The important pathway genes (HMGR, ADS and CYP71AV1) showed higher expression in A. dracunculus, A. roxburghiana and A. sieversiana. Based on the chemical analysis, the presence of a high amount of essential oil and artemisinin in A. dracunculus and A. roxburghiana suggested that these could be important medicinal plants for future research.
Artemisia species; Artemisinin pathway genes; Artemisinin; Genetic diversity; Phenotypic diversity.
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