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Journals and Conferences
Intraspecific HindIII restriction fragment length polymorphism (RFLP) for the structural organization of the ribosomal gene cluster was described in Blattella germanica. In this species, homologous chromosomes were shown to contain ribosomal DNA (rDNA) repeats that differ in structure. The pattern of inheritance was determined for various structural… (More)
Southern-blot hybridization studies have revealed structural differences within the ribosomal DNA clusters of two sibling species, Drosophila melanogaster and Drosophila simulans. The approach used was shown to be suitable for taxonomic identification of the species examined.
Structural polymorphism of rDNA from Blattella germanica was analyzed in six colonies of Moscow city different regions. Two electrophoretic variants of HindIII fragments of rDNA were detected by using 28S-like rDNA probe.
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… (More)
Species-specific characteristics of nuclear ribosomal DNA (rDNA) have been determined for the first time for six insect species of order Blattaria (Insecta, Dictyoptera) with the use of restriction analysis and Southern blotting. Probes containing highly conserved fragments of 18 S- and 28 S-like genes of the ribosomal RNA (rRNA) of Tetrahymena pyriformis… (More)