[Hierarchy of radiotaxons and evolution of the genome]

The computer analysis of cell radioresistance (D0) in 79 organisms distributed by Sparrow among 8 radiotaxons, and in those randomly chosen among 183 organisms has demonstrated the existence of the hierarchic system of clusters as 2, 3 and 4 taxons that are completely consistent with the external and internal criteria of the classification quality. The results obtained indicate a general biological importance of radiotaxonomy that directly reflects the basic steps of structural rearrangements of the genome in the course of evolution.