title: [Analysis of the variable structure of a cluster of ribosomal genes in the Insecta class].
abstract: General estimation of ribosomal DNA variation within the Insecta class is presented. It is shown that, using blot-hybridization, one can detect differences in the structure of the ribosomal gene cluster not only between genera within an order, but also between species within a genera, including sibling species. Structure of the ribosomal gene cluster of the Coccinelidae family (ladybirds) is analyzed. It is shown that cloned highly conservative regions of ribosomal DNA of Tetrahymena pyriformis can be used as probes for analyzing ribosomal genes in insects.
mesh_terms: D000818:Animals; D015139:Blotting, Southern; D003001:Cloning, Molecular; D004275:DNA, Ribosomal / Q000235:genetics*; D014644:Genetic Variation; D007313:Insecta / Q000235:genetics*; D005810:Multigene Family; D012335:RNA, Ribosomal / Q000235:genetics; D013769:Tetrahymena pyriformis / Q000235:genetics
chemical_list: D004275:DNA, Ribosomal; D012335:RNA, Ribosomal; C065096:RNA, ribosomal, 26S
vernacular_title: Analiz variabel'nosti struktury klastera ribosomal'nykh genov v predelakh klassa Insecta.