[Analysis of genetic structure and differentiation of the bog and dry land populations of Pinus sibirica du tour based on nuclear microsatellite loci].

We evaluated the population structure of the bog and dry land populations of the Siberian pine Pinus sibirica (P. sibrica) in Western Siberia using nuclear genome markers. Six pairs of nuclear microsatellite loci were used for this analysis.

[Cytogenetic studies on submerged plants from the Yenisei river area in the zone of radioactive contamination].

Cytogenetic studies on three species of submerged plants from different parts of the Yenisei river area subjected to radioactive impact of the Krasnoyarsk Mining-and-Chemical Plant and the Electrochemical Factory have been conducted. A high level of irregularities in anatelophase and metaphase of mitoses has been revealed in test samples compared to the control: agglutination and fragmentation of chromosomes, lagging chromosomes, bridges, fragments, misdivisions, and others. The natuie of the disorders indicates that they are related in part to the direct damage to the chromosome structure and in part to damage to the spindle.

Supernumerary (B) chromosomes in populations of Picea abies (L.) H. Karst. from Western Rhodopes (Bulgaria).

Investigations on B chromosomes found for the first time for Picea abies (L.) H. Karst.

[Chromosomal mutations in Scotch pine (Pinus sylvestris L.) growing in a hydromorphic environment: a first case of a giant chromosome detection].

Chromosomal mutations and mixoploidy have been revealed in the seedlings of Scotch pine (Pinus sylvestris) growing in a hydromorphic environment. A giant chromosome was detected for the first time in gymnosperms.

[Chromosomal mutations in Siberian larch (Larix sibirica Ledeb.) on Taimyr Peninsula].

Chromosomal mutations were studied in the Norilsk population of Siberian larch (Larix sibirica Ledeb.) growing at the northeastern boundary of the species range affected by airborne smelter emissions. Different types of frequent chromosomal mutations have been revealed in the Norilsk population of L.

[Radioecological monitoring of the Yenisei River and citological characterization of a submerged aquatic plant Elodea canadensis].

The study was devoted to investigation of the contents of radionuclides and of heavy metals and to evaluate the frequency of chromosomal aberrations in samples of Elodea canadensis, a submerged plant, collected in different parts of the Yenisei River. The samples were collected in the area subjected to radioactive impact of the Mining-and-Chemical Combine (MCC) at Zheleznogorsk and in the control area, upstream of the MCC. The investigations shown that elodea biomass in the area affected by MCC operation contained a long inventory of artificial radionuclides typical for the MCC discharges.

[Rubella in Russia: the detection of congenital rubella and the vaccination strategy and procedures].

The work on the evaluation of the role of rubella infection in the development of congenital malformations in newborn infants, as well as the immunogenic activity and tolerability of live attenuated vaccine Rudivax (Pasteur Mérieux Connaught) was carried out in the process of selective immunization in the Perm region. The study made it possible to find out 15% of malformations in the structure of the congenital pathology of newborn infants, which appeared due to the infection of the fetus with rubella virus and were manifested by multiple development defects, congenital C.N.

[Study and assessment of the antigenic activity and reactivity of rubella vaccine].

A total of 3422 adolescent girls and women of a reproductive age were vaccinated against rubella with French vaccine. Antigenic activity and reactogenicity of the vaccine were assessed in 97 girls, 100% seroconversion and weak reactogenicity was observed in seronegative vaccinees.