[Analysis of MGE Dm412 localization pattern in Drosophila melanogaster lines undergoing long-term selection for a quantitative character]. / Analiz spektra lokalizatsii MGE Dm412 v liniiakh Drosophila melanogaster, podvergavshikhsia dlitel'noi selektsii po kolichestvennomu priznaku.

The subpopulation composed of the mixture of Drosophila isogenic lines with interrupted wing radial vein (mutation radius incompletus, ri) was subjected to long-term selection in different directions for increase or decrease in expression of the ri gene. As a result, the lines with contrasting different values of mean character phenotype were developed. The isogenic lines of mean character phenotype were developed. The isogenic lines and F2 from their crosses with selected lines were analysed by the pattern of copia-like MGE DM412 localization. The isogenic lines were shown to have individual pattern, the selected lines differing strongly from them. Selection led to the loss of Dm412 localization sites during negative selection, while positive selection results both in loss and acquisition of sites. Correlation between the phenotype of the quantitative character and the pattern of MGE Dm412 was revealed.

[GeneExpress: an integrator for databases and computer systems accessible by the Internet and intended for studying eukaryotic gene expression]. / Gene Express: integrator baz dannykh i komp'iuternykh sistem, dostupnykh po seti internet i prednaznachennykh dlia izucheniia ékspresii genov éukariot.

We have developed GeneExpress that is the WWW-oriented integrator for the databases and systems supporting the investigation of gene expression. The total number of the Web-based resources integrated is 30. The database GeneNet on molecular events forming gene networks was assigned its integrative core. To navigate all these WWW-available resources, the SRS, HTML, and Java viewers were developed, http:@wwwmgs.bionet.nsc.ru/systems/GeneExpress/.

[Populations of higher plants found in the area of influence of the Semipalatinsk proving grounds]. / Izuchenie populiatsii vysshikh rastenii, nakhodiashchikhsia v zone vliianiia Semipalatinskogo poligona.

Population of Scotch pine and crested wheat grass growing on the territories of Semipalatinsk testing ground and contaminated during the traits of nuclear weapon, and in the control region differ by a number of genetic and cytogenetic trials. Besides, it is evident that the investigation of the nature of genetic anomalies and their association with radiation factors in the problem more complicated than merely to recognize the fact of their availability. This calls for further investigations.