Intragenomic distribution and stability of transposable elements in euchromatin and heterochromatin of drosophila melanogaster: non-LTR retrotransposon |
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| Authors: | Alessandro Terrinoni Carmen Di Franco Patrizio Dimitri Nikolaj Junakovic |
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| Affiliation: | (1) Centro per lo Studio degli Acidi Nucleici C.N.R. Dipartimento di Genetica e Biologia Molecolare, Università La Sapienza, P. le A. Moro 5, 00185 Roma, Italy, IT;(2) Dipartimento di Genetica e Biologia Molecolare, Università La Sapienza, P. le A. Moro 5, 00185 Roma, Italy, IT |
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| Abstract: | The intragenomic location of the elements of the I, G, jockey, F, and Doc transposon families has been studied by the Southern blot analysis, in 12 laboratory Drosophila melanogaster stocks. Elements located in euchromatin, heterochromatin, and on the Y chromosome are identified, and their stability has been assessed by comparing the autoradiographs detected in different stocks and analysis of individual flies. Evidence is shown suggesting that preferential location in euchromatin or heterochromatin and the distribution within heterochromatin are distinctive of transposon families. Elements located in heterochromatin can be unstable. These results are discussed in the context of the relationship between transposable elements and the host genome. Received: 21 August 1996 / Accepted: 24 March 1997 |
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| Keywords: | :Drosophila melanogaster— Euchromatin — Heterochromatin — Eukaryotic transposable elements |
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