PROTEIN MARKERS OF CHERRY (CERASUS MILL.) SPECIES
The electrophoretic polypeptide components of reserve proteins of seeds of the Cerasus Mill. family (cherry): bird cherry [C. avium (L.) Moench; 2n = 16]; shrubby or ground cherry (C. fruticosa Pall.; 2n=32 ); sour cherry (C. vulgaris Mill.; 2n = 32); Kuril cherry [C. kurilensis (Miyabe) Kabanet Vorobiev.; 2n = 16]; Maksimovich cherry [C. Maximowiczii (Rupr. (Rupr.); Kom.; 2n = 16]; Sachalinskaya cherry [C. sachalinensis (Fr. Schmidt) Kom.;] Maaka cherry [C. maackii (Rupr.) Erem et Simag.; 2n = 32]; Pennsylvanian cherry [C. pennsylvanica (L.f.) Loisel.; 2n = 16] have been studied. The degree of relationship of these species has been established. Thus, species from the Far East and C. fruticosa have common components - 36, 45, 47, 62, but these components can sometimes be identified in the C. avium varieties. The same components are ecologically unstable in C. vulgaris cultivars, growing in arid conditions. There are links of C. pennsylvanica with Eurasian species. The genus-specific components 83 and 85 are stable ones. Besides them, common to all studied species are the components 22, 29, 35, 42, 87, 88, 89, but in C. fruticosa they may become unstable under drought conditions. The component 48 is common for the Far East species, the C. pennsylvanica and C. avium, as to the component 70 it is found in the Far East species, C. pennsylvanica, and under dry conditions in the C. fruticosa. All of the above components are only partially (due to drought conditions) inherent to the C. vulgaris cultivars, except the stable component 22; the component 46, on the contrary, is being retained under these unfavorable conditions.