Genomic distribution of transposable elements among individuals of an inbred Drosophila line |
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Authors: | C. Di Franco D. Galuppi N. 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 , Piazzale A. Moro 5, 00185 Roma, Italy |
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Abstract: | The stability of the elements of eleven transposon families (412, B 104, blood, 297, 1731, G, copia, mdg 4, hobo, jockey and I) has been compared by the Southern technique among individuals of a Drosophila line that has been subjected to 30 generations of sister sib matings. The 412, B104, blood, 297, 1731 and G elements appear stable. Heterochromatic copia and hobo elements and euchromatic I elements appear highly polymorphic. In addition, copia, mdg 4, jockey and I elements undergo an instability resulting in significant variations in relative intensity among autoradiographic bands. The extent of the polymorphisms detected strongly suggests de novo rearrangements of transposable elements. |
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Keywords: | Drosophila transposons mobility inbreeding |
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