COMPLEX INSTABILITY IN THE SYSTEM OF STAL KER AND HOBO MOBILE ELEMENTS RELATIONSHIP IN DROSOPHILA-MELANOGASTER

A number of mutations in different Drosophila loci resulted from the r elationship between hobo and stalker mobile elements. In this investig ation an insertion from the parential white mutation -w(aG) - was clon ed. And the Doc element, that is the reason of the mutation, is not mo ving in the observed instability system. But transpositions of the cop ia-like elements (e.g. mdg1, 2, 3 and copia) were shown in this system . A cases of chromosomal rearrangements and ubnormal recombination in compound with transpositions of different mobile elements were found, Thus, the system of instability could be explained in terms of univers al mechanism which involved both transpositions and recombinations phe nomena.