SUMMARY. The regenerative capability of three types of explants was studied on the media with different compositions of growth regulators with the purpose of selecting optimal conditions of fast reproduction of endangered Crambe species that could be used as a relevant source of gene-tic material for the improvement of industrially valuable plants. PCR-analysis of genotypes of C. koktebelica and C. tataria plants was conducted to identify the influence of in vitro cultivation on the genetic stability of plants. The highest regeneration rates were observed with the use of petiole explants on MS medium with BA and NAA. The absence of somaclonal variability in C. koktebelica and C. tataria in vitro regenerated plants was demonstrated.
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