Fruitless specifies sexually dimorphic neural circuitry in the Drosophila brain

Article Abstract:

A subset of the Drosophila fruitless (fru)-expressing interneurons in the brain that show significant sexual dimorphism is identified and the theory that the fru gene product Fru in the Drosophila brain supports the development of neurons with male-specific dendritic fields, programmed to die during female development, is demonstrated. It is concluded that Fru expression produces a male-specific neural circuit, probably during heterosexual courtship, by preventing cell death in identifiable neurons.

Sexual behavior in animals, Animal sexual behavior, Animal sexual behaviour

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Direct estimation of per nucleotide and genomic deleterious mutation rates in Drosophila

Article Abstract:

The nucleation mutation rate (u) in Drosophila melanogaster is estimated by scanning 20 million bases of DNA from three sets of mutation accumulation lines, using denaturing high-performance liquid chromatography. The high rates have suggested that selection against deleterious mutations might play a key role in describing the patterns of genetic variation in the genome and help in maintaining recombination and sexual reproduction.

Australia, Analysis, Gene mutations, Gene mutation, High performance liquid chromatography, Nucleotide sequencing

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Sex in fruitflies is fruitless

Article Abstract:

A glimpse into how the male and female nervous systems function to generate sexual behavior in fruitflies (Drosophila) is discussed. However it is found that normal fly sexual behaviors cannot be modulated to any significant extent by altering experience.

Genetic research

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