Genetic diversity, population structure and chromosome numbers in medicinal plant species Stellaria media L. VILL.
Keywords:Genetic diversity, ISSR, Morphology, Species relationship, Stellaria media
Stellaria media L. VILL., is known under the name of chickweed, it is an annual plant in the family Caryophyllaceae. Stellaria media is distributed in the all regions of Iran and has been introduced to many habitats of the world. S. pallida is very similar to S. media. This plant is considered to be as a herbal remedy and is used in folk medicine. Stellaria media is edible and nutritious. In the present study, we used morphological and ISSR data for this species. For this, 43 morphological characteristics, including 16 qualitative and 26 quantitative. AMOVA and Gst analyses showed that the populations of this species are genetically differentiated. Nm analysis revealed very low value of genetic diversity among the studied population and mantel test indicated isolation by distance occurred among them. The present study showed that the studied populations of S. media are differentiated in morphological characteristics and genetic content. In general, species relationships obtained from morphological and molecular data were largely congruent.
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