Variability of M. arvensis from five geographically distanced populations was examined using morphological traits and phytochemical composition of essential oil and with the help of DNA fingerprinting using ISSR markers. The population differentiation based on morphological traits was weak. Analysis of the essential oil composition provided the subdivision of the sample into three groups and, on the basis of the composition of ISSR amplicons, into four groups of specimens. A high degree of genetic polymorphism of M. arvensis and substantial, though incomplete, population differentiation were identified. It was demonstrated that the population of M. arvensis from the Komi Republic was the most genetically isolated, while the populations from Moscow and Penza provinces were weakly differentiated from each other. The population from the Republic of Belarus (near Grodno) was genetically and phytochemically considerably different from the other studied populations, although morphologically indistinguishable from them. We argue that the differentiation was caused not only by the isolation by distance but also owing to the formation of three different ecotypes adapted to different climatic conditions.
Russian Journal of Genetics – Springer Journals
Published: Feb 7, 2017
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