Transposition rate of the 412 retrotransposable element is independent of copy number in natural populations of Drosophila simulans.
نویسندگان
چکیده
The transposition and excision rates of the 412 retrotransposable element were estimated in five populations of Drosophila simulans differing in their average 412 copy numbers, which ranged from 2 to 54. The transposition rate was found to equal 1 x 10(-3) to 2 x 10(-3), independently of copy number. No excision was detected. These values eliminate autoregulation as a force maintaining copy number of the 412 element in natural populations of D. simulans.
منابع مشابه
Distribution of the retrotransposable element 412 in Drosophila species.
Copy numbers of sequences homologous to the Drosophila melanogaster retrotransposable element 412, their distribution between the chromosome arms and the chromocenter, and whether they contain full-size copies were analyzed for 55 species of the Drosophila genus. Element 412 insertion sites were detected on the chromosome arms of D. melanogaster, Drosophila simulans, and a few species of the ob...
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عنوان ژورنال:
- Molecular biology and evolution
دوره 14 2 شماره
صفحات -
تاریخ انتشار 1997