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Differentiation of Glycyrrhiza uralensis Fisch ex DC. populations in the Bulgan River Basin, Western Mongolia

Authors Dashzeveg, Nyambayar; Vornam, Barbara; Nergui, Soninkhishig; Buerkert, Andreas

Journal GENETIC RESOURCES AND CROP EVOLUTION , OCT 2018,7:65

DOI 10.1007/s10722-018-0656-z

Abstract Glycyrrhiza uralensis Fisch. ex DC. (Chinese licorice) is an important medicinal plant in Mongolia. Despite its traditional role in local healing systems, little is known about the existing intra-specific diversity of this species. The aim of the present study therefore was to analyze morphological and genetic diversities of G. uralensis in the Bulgan River Basin in Western Mongolia and to test different treatments aimed at breaking seed dormancy in order to facilitate effective cultivation of this species. Morphological measurements were taken and leaf and seed samples were collected in eight populations of the Bulgan River Basin. Subsequently, DNA was extracted from leaves and analyzed employing amplified fragment length polymorphisms. A total of 11 treatments were used to test and enhance seed germination. Morphological characteristics differed among populations. Treatments used in the study affected total emergence and mean days to germination of the seeds differently, but populations did not differ in their response whereas differentiation within populations was high. Mechanical and acid scarifications were more effective compared to other treatments. The level of genetic diversity in the studied populations was lower than the average value of the short-lived perennial herbs, but close to that of the self-breeding species. Most of the genetic variation was within populations. Chinese licorice is suitable for cultivation in the Bulgan River Basin and effective scarification can increase germination of seeds across the populations collected in our study area.

Species covered 甘草 Glycyrrhiza uralensis