Davis, Terence ![]() |
Abstract
There are several mechanisms for the determination of sex. Sexual behaviour is part of the sex-determination cascade, and in Drosophila melanogaster male courtship is controlled in part by the fruitless gene. As part of a study of sexual behaviour in Hawaiian Drosophila, we have cloned the neural sex-determination gene fru from the Hawaiian picture-wing species Drosophila heteroneura. The fru gene has at least seven exons covering a region of 18 kb and encodes three transcripts, fruA, fruB and fruC. Each transcript encodes a single ORF of 841, 678 and 691 aa, respectively. The FRUA and FRUB proteins have a BTB protein–protein-binding domain and two zinc finger-like domains and are well conserved with the D. melanogaster proteins. The FRUC protein has a BTB domain but no zinc finger-like domains. The fru gene is expressed in 1–7 day old adult males as a 5.1 kb transcript. This transcript is not seen in adult females, so the fru gene has a different pattern of sex-differential expression in the Hawaiian Drosophila compared with D. melanogaster.
Item Type: | Article |
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Date Type: | Publication |
Status: | Published |
Schools: | Medicine |
Subjects: | Q Science > QH Natural history > QH426 Genetics R Medicine > R Medicine (General) |
Uncontrolled Keywords: | bp, base pairs; BTB protein–protein-binding domain; DNA cloning; kb, 1000-base pairs; Muscle of Lawrence; Sexual behaviour; Transcription factor; Zinc finger domain |
Publisher: | Elsevier |
ISSN: | 0378-1119 |
Last Modified: | 14 Dec 2022 07:22 |
URI: | https://orca.cardiff.ac.uk/id/eprint/63564 |
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