Abstract
Using genetic, anatomical, and morphological methods, a comprehensive study of the biological diversity of 27 natural populations of Juniperus communis L. across the main geographic range was carried out. The taxonomic status of the Caucasian variety J. communis var. oblonga was confirmed. In turn, as follows from chloroplast markers, the populations of this variety in the North Caucasus split into two parts, western and eastern. North American J. communis var. depressa and the Far Eastern J. communis var. saxatilis do not differ in morphological, anatomical, and nuclear markers, but differ in chloroplast markers, and are probably relative genetic lineages which, under similar environmental conditions, acquired convergent phenotypes. These varieties can only be distinguished using genetic methods. J. communis var. communis and J. communis var. saxatilis, growing in Europe and Asia, do not differentiate genetically, but demonstrate statistically significant differences with respect to a number of morphological and anatomical parameters of needles and the prevailing life forms. Therefore, it seems likely that these juniper varieties are ecotypes, which, growing under different environmental conditions, acquired differences in morphology and anatomy.
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ACKNOWLEDGMENTS
We thank Z.M. Asadulaev and A.M. Musaev (Mountain Botanical Garden, Dagestan Scientific Center, Russian Academy of Sciences) for help in collecting material in the Caucasus.
Funding
This study was supported by the budget financing on state contract no. AAAA-A17-117101820003-0 and the Russian Foundation for Basic Research (grant no. 18-04-00616).
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Translated by N. Maleeva
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Knyazeva, S.G., Hantemirova, E.V. Comparative Analysis of Genetic and Morpho-Anatomical Variability of Common Juniper (Juniperus communis L.). Russ J Genet 56, 48–58 (2020). https://doi.org/10.1134/S102279542001007X
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DOI: https://doi.org/10.1134/S102279542001007X