Social behavior genes

A recent article in the New York Times discusses the 30 or so genes (discovered so far) that seem to regulate social behavior in animals.

Genes have been found to regulate courtship behavior in fruit flies, as well as mating behavior in mice.  Most interesting, though, is how "social behavior genes present a particular puzzle since they involve neural circuits in the brain, often set off by some environmental cue to which the animal responds".  Genes can harness the higher brain to have their effect.