sexual wing shape dimorphism in Drosophila melanogaster , Ceratitis capitata , and Musca 1 domestica 2 3
نویسندگان
چکیده
Natalia Siomava, Ernst A. Wimmer, Nico Posnien* 4 5 University Goettingen, Johann-Friedrich-Blumenbach-Institute of Zoology and Anthropology, Göttingen Center 6 for Molecular Biosciences (GZMB), Department of Developmental Biology, Ernst-Caspari-Haus, Justus-von7 Liebig-Weg 11, 37077 Göttingen, Germany 8 9 1 current address: Department of Anatomy, Howard University College of Medicine, Washington DC, USA 10 11 *Corresponding author: 12 [email protected] 13 14
منابع مشابه
The Ceratitis capitata homologue of the Drosophila sex-determining gene sex-lethal is structurally conserved, but not sex-specifically regulated.
In Drosophila, Sxl functions as a binary switch in sex determination. Under the control of the primary sex-determining signal, it produces functional protein only in XX animals to implement female development. Here we report that, in contrast to Drosophila, the Sxl homologue in the Medfly, Ceratitis capitata, expresses the same mRNAs and protein isoforms in both XX and XY animals irrespective o...
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In Drosophila melanogaster, transformer-2 (TRA-2) which is a non-sex-specific auxiliary splicing factor, is required to promote female sexual differentiation by interaction with the female-specific TRA. The two proteins positively regulate the splicing of both doublesex (dsx) and fruitless (fru) pre-mRNAs, which in turn regulate phenotypic and behavioural sexual dimorphism. In the Mediterranean...
متن کاملSex-lethal, the master sex-determining gene in Drosophila, is not sex-specifically regulated in Musca domestica.
Sex-lethal (Sxl) is the master switch gene for somatic sex determination in Drosophila melanogaster. In XX animals, Sxl becomes activated and imposes female development; in X(Y) animals, Sxl remains inactive and male development ensues. A switch gene for sex determination, called F, has also been identified in the housefly, Musca domestica. An active F dictates female development, while male de...
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Gene flow over very large geographic scales has been investigated in few species. Examples include Drosophila melanogaster, Drosophila subobscura, Drosophila simulans, and the Mediterranean fruit fly (Ceratitis capitata). The cosmopolitan house fly, a highly vagile, fecund, colonizing species offers an additional exemplar. Genotypes at seven microsatellite loci were scored in 14 widely separate...
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