Comparative analysis of species of the genus Rosa L. on the territory of the Eastern European Plain

Abstract

The methods of gel electrophoresis with some modification have been developed on the types of rose hips. Identification of a species, as well as determining the degree of its intraspecific polymorphism, includes analysis of individual seeds taken from a random sample of different populations. For identification and analysis of the purity of the composition of the seeds of cultivars, an analysis of at least 100–150 seeds of each cultivar is recommended. Spectra were recorded using a special digital (large-scale) scale, which allows fixing the position (“addresses”) of individual polypeptide components at positions from 1 to 122. Components of low intensity were taken for 1 point, and strong ones (bright) for 2 points. The high sensitivity of the polyacrylamide gel electrophoresis (PAGE) method in the presence of sodium dodecyl sulfate (DS-Na, SDS) and 2-mercaptoethanol to genetic differences at the level of small taxa is clearly manifested in rosehip species. The research results allow us to clarify the taxonomy of the genus Rosa.

Features of the formation of the floodplain ecosystem of the black alder cluster in the conditions of the Orenburg Urals

“…Silvicultural research of the last decade has been aimed at identifying tree species that ontogenetically and phylogenetically demonstrate the ability to form stable natural, dynamically developing forest ecosystems under the influence of anthropogenic pressure [2].…”