Header

UZH-Logo

Maintenance Infos

Somatic sex-determining signals act on XX germ cells in Drosophila embryos.


Staab, S; Heller, A; Steinmann-Zwicky, M (1996). Somatic sex-determining signals act on XX germ cells in Drosophila embryos. Development, 122(12):4065-4071.

Abstract

In Drosophila, the enhancer-trap line mgm1 is already specifically expressed in male germ cells. Staining is first detected in 10-hour-old embryos and it is found in later stem cells. This line, which reveals the earliest sex-specific gene expression in the germline known so far, is a useful molecular marker to assess the sexual pathway that germ cells have entered before any overt sexual dimorphism is apparent. XY germ cells that develop in feminized animals express mgm1, which shows that this marker is autonomously expressed in XY germ cells. However, XX germ cells that develop in masculinized animals also express mgm1. Therefore, somatic sex-determining signals have already acted on XX germ cells in 10-hour-old embryos.

Abstract

In Drosophila, the enhancer-trap line mgm1 is already specifically expressed in male germ cells. Staining is first detected in 10-hour-old embryos and it is found in later stem cells. This line, which reveals the earliest sex-specific gene expression in the germline known so far, is a useful molecular marker to assess the sexual pathway that germ cells have entered before any overt sexual dimorphism is apparent. XY germ cells that develop in feminized animals express mgm1, which shows that this marker is autonomously expressed in XY germ cells. However, XX germ cells that develop in masculinized animals also express mgm1. Therefore, somatic sex-determining signals have already acted on XX germ cells in 10-hour-old embryos.

Statistics

Citations

Dimensions.ai Metrics
32 citations in Web of Science®
30 citations in Scopus®
33 citations in Microsoft Academic
Google Scholar™

Altmetrics

Downloads

115 downloads since deposited on 11 Feb 2008
7 downloads since 12 months
Detailed statistics

Additional indexing

Item Type:Journal Article, refereed
Communities & Collections:07 Faculty of Science > Institute of Molecular Life Sciences
Dewey Decimal Classification:570 Life sciences; biology
Language:English
Date:1 December 1996
Deposited On:11 Feb 2008 12:17
Last Modified:20 Feb 2018 08:45
Publisher:Company of Biologists
ISSN:0950-1991
OA Status:Green
PubMed ID:9012526

Download

Download PDF  'Somatic sex-determining signals act on XX germ cells in Drosophila embryos.'.
Preview
Filetype: PDF
Size: 244kB