Quick Search:

uzh logo
Browse by:
bullet
bullet
bullet
bullet

Zurich Open Repository and Archive 

Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-489

Saccone, G; Peluso, I; Artiaco, D; Giordano, E; Bopp, D; Polito, L C (1998). The Ceratitis capitata homologue of the Drosophila sex-determining gene sex-lethal is structurally conserved, but not sex-specifically regulated. Development, 125(8):1495-1500.

[img]
Preview
PDF
156Kb

Abstract

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 of the primary sex-determining signal. Also, experiments with two inducible transgenes demonstrate that the corresponding Ceratitis SXL product has no significant sex-transforming effects when expressed in Drosophila. Similar results have been obtained for the Sxl homologue of Musca domestica (Meise, M., Hilfiker-Kleiner, D., Brunner, C., DŁbendorfer, A., N¿thiger, R. and Bopp, D. (1998) Development 125, 1487-1494). Our findings suggest that Sxl acquired its master regulatory role in sex determination during evolution of the Acalyptratae group, most probably after phylogenetic divergence of the genus Drosophila from other genera of this group.

Item Type:Journal Article, refereed
Communities & Collections:07 Faculty of Science > Institute of Molecular Life Sciences
DDC:570 Life sciences; biology
Language:English
Date:01 April 1998
Deposited On:11 Feb 2008 13:15
Last Modified:27 Nov 2013 22:54
Publisher:Company of Biologists
ISSN:0950-1991
Related URLs:http://dev.biologists.org/cgi/content/abstract/125/8/1495
PubMed ID:9502730
Citations:Web of Science®. Times Cited: 84
Google Scholar™

Users (please log in): suggest update or correction for this item

Repository Staff Only: item control page