Change of the organization chromosomes in ovarian nurse cells of Drosophila melanogaster upon inbreedingand hybrid dysgenesis

The effect of low temperature at chromosomes arrangement in ovarian nurse cells of D. melanogaster laboratory inbred strains low been investigated. Low-active (LA), High-active (HA) strains, which were isolated from one another long time ago, and inbred strains 30 inbred generations have been examined. Extreme temperatures and long-term inbreeding have been proved to be relevant factors which affect the synapses of chromosomes. The consequence of inbreeding is the phenomenon of hybrid dysgenesis, which affects spatial arrangement of chromosomes in the nucleus.

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