کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5907643 | 1569919 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The heterochromatic copies of the LTR retrotransposons as a record of the genomic events that have shaped the Drosophila melanogaster genome
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
بیوشیمی، ژنتیک و زیست شناسی مولکولی
ژنتیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Transposable elements, which are major components of most genomes, are known to accumulate in heterochromatic regions in which they have progressively diverged in sequence by mutations and internal deletions and insertions (indels) during the course of evolution. They therefore provide a record of the genomic events that have shaped the genomes, some of which could correspond to speciation events. Using the sequence divergence between the long terminal repeats (LTRs), we estimated the date of the insertion events of the LTR retrotransposon copies embedded within the heterochromatin regions of the Drosophila melanogaster genome. We did not detect traces of any specific waves of mobilization of retrotransposons within heterochromatin, apart from a very recent wave, which corresponds to the numerous LTR retrotransposon copies found in euchromatin.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Gene - Volume 411, Issues 1â2, 31 March 2008, Pages 87-93
Journal: Gene - Volume 411, Issues 1â2, 31 March 2008, Pages 87-93
نویسندگان
Nathalie Mugnier, Laurent Gueguen, Cristina Vieira, Christian Biémont,