Courtship song is a critical component of male courtship behavior in Drosophila, making the female more receptive to copulation and communicating species-specific information [1-6]. Sex mosaic studies have shown that the sex of certain regions of the central nervous system (CNS) is critical to song production . Our examination of one of these regions, the mesothoracic ganglion (Msg), revealed the coexpression of two sex-determination genes, fruitless (fru) and doublesex (dsx). Because both...Expand abstract
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The sex-determination genes fruitless and doublesex specify a neural substrate required for courtship song.
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