Geographic polymorphism of P element in populations of Drosophila sturtevanti

Evolution of P elements in natural populations of Drosophila willistoni and D. sturtevanti.

To determine how population structure of the host species affects the spread of transposable elements and to assess the strength of selection acting on different structural regions, we sequenced P elements from strains of Drosophila willistoni and Drosophila sturtevanti sampled from across the distributions of these species. Elements from D. sturtevanti exhibited considerable sequence variation...

Experiments on Sexual Isolation in Drosophila: III. Geographic Strains of Drosophila Sturtevanti.

the study of aaag repeat polymorphism in promoter of errg gene and its association with the risk of breast cancer in isfahan region

چکیده: سرطان پستان دومین عامل مرگ مرتبط با سرطان در خانم ها است. از آنجا که سرطان پستان یک تومور وابسته به هورمون است، می تواند توسط وضعیت هورمون های استروئیدی شامل استروژن و پروژسترون تنظیم شود. استروژن نقش مهمی در توسعه و پیشرفت سرطان پستان ایفا می کند و تاثیر خود را روی بیان ژن های هدف از طریق گیرنده های استروژن اعمال می کند. اما گروه دیگری از گیرنده های هسته ای به نام گیرنده های مرتبط به ا...

Occurrence of P element in natural populations of Drosophila melanogaster in

Using PCR and sequencing we have demonstrated the presence of P elements in genomes of Drosophila melanogaster from natural populations of Ukraine. The degree of gonadal reduction revealed indirectly indicates low or, in some cases, zero activity of the mobile element in the inspected natural populations of Drosophila. All studied populations have been found to represent the M’ cytotype. In thi...

Chromosomal Inversion Polymorphism in Natural Populations of Drosophila ruberrima

Shu Fang, Fei-Jann Lin and Hwei-yu Chang (1998) Chromosomal inversion polymorphism in natural populations of Drosophila ruberrima. Zoological Studies 37(4): 309-321. The standard map of the giant polytene chromosome of Drosophila ruberrima, one of the members of the immigrans species subgroup of the immigrans species group, is constructed according to the primitive gene arrangement or standard ...