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Abstract
45S and 5S ribosomal DNA were originally localized on chromosomes of five species of winter aconits,namely, Eranthis cilicica, E. hyemalis (section Eranthis), E. pinnatifida, E. stellata и E. tanhoensis (section Shibateranthis).Fluorescence in situ hybridization was performed with oligonucleotide DNA probes Oligo-pTa71-2 and Oligo-5S rDNAof wheat that are complementary to 45S and 5S ribosomal DNA. In addition, oligonucleotide DNA probe (Oligo-5.8SrDNA-Ran, 50 b) for localization of 45S rDNA was designed and tested. This probe is based on the 5.8S rDNA sequencesof some species of fam. Ranunculaceae taken from GenBank. A specific hybridization of the Oligo-5S rDNA and Oligo5.8S rDNA-Ran probes with the chromosomes of Eranthis was shown. The use of the Oligo-pTa71-2 probe did not localizeclusters of 45S rDNA on chromosomes of studied species.
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