The results of cherry species (Prunus L.) alien pollination in connection with the possibility of agamosperm reproduction
УДК 582.734.6:581.16+624.23:631.52
Abstract
Agamosperm (asexual) reproduction, along with conventional sexual reproduction, is quite widespread inthe Rosaceae Juss. family. It provides several advantages for successful seed progeny reproduction in unfavorable natural conditions. Remote hybridization and polyploidy are genetic mechanisms, which favor to the development of seedswithout fertilization. For species of stone plants, in the phylogeny of which these two factors play a decisive role, it is important to assess the possibility of the presence of a pseudogamous type of apomixes, which requires the obligatory pollenapplication on the stigma for seed development. The aim of the investigation was to study the results of alien pollinationfor 4 wild and cultivated cherries (Prunus pensylvanica L., P. maackii Rupr., P. fruticosa Pall., P. cerasus L.) in connection with the prospect of including the agamosperm genotypes in breeding crosses. The possibility of pseudogamous reproduction was revealed only for wild P. fruticosa.
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