Различия линий и гибридов Drosophila melanogaster по приспособленности и биоэлектрические свойства клеточных ядер.

Abstract

Electrokinetic properties of cell nuclei of Drosophila melanogaster were under investigation. Two selected highly inbred lines of LA (low active) and HA (high active) and interlinear hybrids of F1 LAxHA and HAxLA were used as material. The lower number of electronegative nuclei (EN% value) was found in the salivary glands of larvaes of the inadaptive LA line in comparison with the HA line. The hybrids surpassed both the parental lines. The obtained results are discussed in connection with the mechanisms of heterosis and peculiarities of structure and functions of polytene chromosomes in the investigated lines and hybrids of drosophila.