ABSTRACT
Visual and Acoustic Stimuli ........................................................................ 320 22.3 Pheromones and Biosynthetic Genes............................................................ 321 22.4 Gustatory and Olfactory Receptors............................................................... 324 22.5 Sex Determination Cascade and the Courtship
Behavior Master Gene Fruitless .................................................................. 326 References.............................................................................................................. 328
Drosophila melanogaster is a marvelous material for behavioural genetic analysis. First, it has been shown to be highly amenable for genetic analysis. It has a reduced developmental time (about 9 days at 25°C) and a compact genome (four pairs of chromosomes including three pairs of autosomes and one pair of sex chromosomes). The classic genetic tools such as visible markers and balancer chromosomes can be efficiently used together with new technology to elucidate molecular mechanisms. The complete genome sequence has been known for 5 years1 and can be compared with those of other model organisms that appear in the literature. Large parts of those of other Drosophila species are also available2 at https://flybase.bio.indiana.edu.
