Hoppel family of Drosophila melanogaster mobile elements flanked by short inverted repeats and possessing a preferential localization in the heterochromatin regions of the genome
1991
Kurenova, E.V. | Leibovich, B.A. | Bass, I.A. | Bebikhov, D.V. | Pavlova, M.N. | Danilevskaya, O.N.
A mobile element (ME) possessing 91% homology to Dm1360 was cloned from the D. melanogaster genome and sequenced. The family of ME was named hoppel. This is still another family of ME of the Drosophila genome, together with P, hobo, and HB, flanked by short inverted repeats. The ME hybridizes with 10-30 euchromatin sites of polytene chromosomes of various strains. In all the strains of flies, as well as in D. simulans, strong hybridization is observed with the heterochromatin regions of the chromosomes: with the chromocenter, the fourth chromosome, the pericentromere heterochromatin, and the telomeres. At least six variants of ME differing in size of the central portion were detected in the genome. Like the P-element, this ME possesses ARS activity. It was shown that in one of the recombinant phages two hoppel ME are arranged in direct orientation relative to one another.
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