[Comparative analysis of hsp70 gene cluster in Drosophila virilis species group].

We cloned and sequenced one of Drosophila montana hsp70 genes. 3'-flanking region of this particular copy contains fragment of SGM mobile element. Previously this element was found within hsp70 3'-flanking region of other species of the virilis species group namely D. virilis and D. lummei. We have described reorganization of hsp70 gene cluster in one of D. virilis strains involving full-length SGM. Our data enable one to suggest evolutionary conservatism of SGM localization within hsp70 gene cluster of different species of the virilis group of Drosophila and implicate this mobile element in the evolution of hsp70 genes.