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Title

A simple and efficient method to identify replacements of P-lacZ by P-Gal4 lines allows obtaining Gal4 insertions in the bithorax complex of Drosophila

AuthorsNavas, Luis F. de ; Foronda, David ; Suzanne, Magali; Sánchez-Herrero, Ernesto
KeywordsDrosophila
P-element
Bithorax complex
Gal4 lines
Ubx
Abd-B
Issue Date2-Aug-2006
PublisherElsevier
CitationMechanisms of Development, Volume 123, Issue 11, November 2006, Pages 860-867
AbstractThe functional replacement of one gene product by another one is a powerful method to study specificity in development and evolution. In Drosophila, the Gal4/UAS method has been used to analyze in vivo such functional substitutions. To this aim, Gal4 lines that inactivate a gene and reproduce its expression pattern are required, and they can be frequently obtained by replacing pre-existing P-lacZ lines with such characteristics. We have devised a new method to quickly identify replacements of P-lacZ lines by P-Gal4 lines, and applied it successfully to obtain Gal4 insertions in the Ultrabithorax and Abdominal-B Hox genes. We have used these lines to study the functional replacement of a Hox gene by another one. Our experiments confirm that the abdominal-A gene can replace Ultrabithorax in haltere development but that it cannot substitute for Abdominal-B in the formation of the genitalia.
Publisher version (URL)http://dx.doi.org/10.1016/j.mod.2006.07.010
URIhttp://hdl.handle.net/10261/4693
DOI10.1016/j.mod.2006.07.010
ISSN0925-4773
E-ISSN1872-6356
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