Genomic distribution of transposable elements among individuals of an inbred Drosophila line.
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.
Di Franco
C
C
Dipartimento di Genetica e Biologia Molecolare, Università La Sapienza, Roma, Italy.
Galuppi
D
D
Junakovic
N
N
D000818:Animals; D015139:Blotting, Southern; D004251:DNA Transposable Elements; D004330:Drosophila / Q000235:genetics*; D005260:Female; D017344:Genes, Insect; D007178:Inbreeding; D011110:Polymorphism, Genetic
D004251:DNA Transposable Elements