Ribosomal DNA (rDNA) loci encoding 5S and 45S (18S-5.8S-28S) rRNAs are important
components of eukaryotic chromosomes. Here, we set up the animal rDNA database containing …

Apricot cultivars may be composed of a variety of clones differing in minor genetic and
phenotypic characteristics. Transposable elements might be considered, among other factors, a …

Background and aims Brassica napus (AACC, 2n = 38, oilseed rape) is a relatively recent
allotetraploid species derived from the putative progenitor diploid species Brassica rapa (AA, …

The radionuclide 129 I is a long-lived fission product that decays to 129 Xe by beta-particle
emission. It is an important tracer in geological and biological processes and is considered …

We report on a major update to the animal rDNA loci database, which now contains cytogenetic
information for 45S and 5S rDNA loci in more than 2600 and 1000 species, respectively. …

A system designed for absolute activity measurement is described using a digital method.
The system is based on data recording from a coincidence measurement and subsequent …

New measurements have been undertaken to determine the half-life of 151 Sm. A pure 151
Sm solution was obtained after chemical separation from a samarium solution resulting from …

Despite the widely accepted involvement of DNA methylation in the regulation of rDNA
transcription, the relative participation of different cytosine methylation pathways is currently …

This paper presents the latest update to the Plant rDNA database (Release 4.0), a valuable
resource for researchers in the field of plant cytogenetics. The database provides information …

In recent years the software coincidence counting system, designed for absolute activity
measurement, has been developed in the Czech Metrology Institute. In this system a true …