Genomic P elements content of a wild M' strain of Drosophila melanogaster: KP elements do not always function as type II repressor elements
نویسندگان
چکیده
منابع مشابه
Full-size P and KP elements predominate in wild Drosophila melanogaster.
We analyzed the genomic P elements of 57 wild-derived Drosophila melanogaster isofemale lines from Africa, Australia and Asia. All carried many P sequences per genome, and the full-size P and the internally deleted KP elements were very common or predominant in the populations. The genomic content of full-size P and KP elements does not correlate well with the P transposition-inducing and -repr...
متن کاملCytotype regulation by telomeric P elements in Drosophila melanogaster: interactions with P elements from M' strains.
P strains of Drosophila are distinguished from M strains by having P elements in their genomes and also by having the P cytotype, a maternally inherited condition that strongly represses P-element-induced hybrid dysgenesis. The P cytotype is associated with P elements inserted near the left telomere of the X chromosome. Repression by the telomeric P elements TP5 and TP6 is significantly enhance...
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Fusions between the Drosophila hsp70 promoter and three different incomplete P elements, KP, SP, and BP1, were inserted into the Drosophila genome by means of hobo transformation vectors and the resulting transgenic stocks were tested for repression of P-element transposase activity. Only the H(hsp/KP) transgenes repressed transposase activity, and the degree of repression was comparable to tha...
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Recent genomic sequencing of 10 additional Drosophila genomes provides a rich resource for comparative genomics analyses aimed at understanding the similarities and differences between species and between Drosophila and mammals. Using a phylogenetic approach, we identified 64 genomic elements that have been highly conserved over most of the Drosophila tree, but that have experienced a recent bu...
متن کاملCytotype Regulation by Telomeric P Elements in Drosophila melanogaster : Interactions With P Elements From M9 Strains
P strains of Drosophila are distinguished from M strains by having P elements in their genomes and also by having the P cytotype, a maternally inherited condition that strongly represses P-element-induced hybrid dysgenesis. The P cytotype is associated with P elements inserted near the left telomere of the X chromosome. Repression by the telomeric P elements TP5 and TP6 is significantly enhance...
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ژورنال
عنوان ژورنال: Genes & Genetic Systems
سال: 2008
ISSN: 1341-7568,1880-5779
DOI: 10.1266/ggs.83.67