[The genomic organization and localization on the chromosomes of the HvRT family of DNA repetitive sequences in barley].

HvRT family of repetitive DNA sequences from barley genome appears to have complex hierarchical organization. Tandem repetition of 118-bp monomers constitutes lower level of HvRT-family organization. Amplification units of the higher level consist of several contiguous 118-bp monomers.

[The cloning of "residual" DNA and the determination of the primary structure for the fragments of the barley-specific family of tandem repetitive sequences].

High molecular weight "relic" DNA fraction can be separated from the bulk of barley DNA digested with different restriction enzymes by agarose gel electrophoresis. The majority of AluI-relic DNA clones contained barley simple sequence satellite DNA and other families of repetitive DNA. The clones representing HvRT family were sequenced.