Dora Artiaco

University of Naples Federico II

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Maria Furia

University of Naples Federico II

Lino C. Polito

University of Naples Federico II

Filomena Anna Digilio

National Research Council

Pier Paolo D’Avino

University of Cambridge

Guido Favia

Università di Camerino

Ennio Giordano

University of Naples Federico II

Giuseppe Saceone

University of Naples Federico II

Inga Sid�n-Kiamos

Foundation for Research and Technology Hellas

Daniel Bopp

University of Zurich

Stefania Crispi

Institute of Biosciences and Bioresources

Cooperative Institutions

University of Naples Federico II

Institute of Genetics and Biophysics

Institute of Protein Biochemistry

National Research Council

Institute of Biosciences and Bioresources

Foundation for Research and Technology Hellas

Sapienza University of Rome

Princeton University

University of Basel

Stazione Zoologica Anton Dohrn

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Molecular characterization of a Drosophila melanogaster variant strain defective in the Sgs-4 gene dosage compensation

Biochimica et Biophysica Acta (BBA) - Gene Structure and Expression (1992)

Maria Furia Filomena Anna Digilio Dora Artiaco Guido Favia Lino C. Polito

Coding region

Strain (injury)

Dosage compensation

Melanogaster

10.1016/0167-4781(92)90444-5

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Citations (4)

The Ceratitis capitata homologue of the Drosophila sex-determining gene Sex-lethal is structurally conserved, but not sex-specifically regulated

Development (1998)

Giuseppe Saccone Ivana Peluso Dora Artiaco Ennio Giordano Daniel Bopp

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., Dübendorfer, A., Nöthiger, 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.

Ceratitis capitata

10.1242/dev.125.8.1495

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Citations (128)

Opa-like repeats in the genome of the Medfly Ceratitis capitata

Genetica (1993)

Inga Sid�n-Kiamos Guido Favia Dora Artiaco Giuseppe Saceone Maria Furia

Ceratitis capitata

Direct repeat

Repeated sequence

Reading frame

genomic DNA

Stop codon

10.1007/bf00057506

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Citations (3)

A new gene nested within theduncegenetic unit ofDrosophila melanogaster

Nucleic Acids Research (1990)

Maria Furia Filomena Anna Digilio Dora Artiaco Ennio Giordano Lino C. Polito

The molecular organization of the dunce gene of Drosophila melanogaster has proved to be particularly complex, with two divergently transcribed genes, Sgs-4 and Pig-1, nested within its 79 kb Intron (1). Here we report the identification and the molecular characterization of a third gene nested within the transcription unit of dunce. This newly identified gene is located nearly 6 kb downstream Pig-1, within a more upstream dunce intron. The gene is developmentally regulated and transcribed with the same polarity of dunce; several lines of evidence indicate that it might encode for a salivary gland secreted (Sgs) protein.

Melanogaster

10.1093/nar/18.19.5837

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Citations (22)

Dense Cluster of Genes is Located at the Ecdysone-regulated 3C Puff of Drosphila melanogaster

Journal of Molecular Biology (1993)

Maria Furia Pier Paolo D’Avino Stefania Crispi Dora Artiaco Lino C. Polito

Polytene chromosome

Gene cluster

Homology

Melanogaster

10.1006/jmbi.1993.1304