ABSTRACT
Genetic influences on reproductive behaviors can work through direct or indirect routes (see Chapter 1, Ref. 1). In the field of reproductive physiology, many of the indirect routes most easily demonstrated derive from the phenomena of sexual determination and differentiation. Here, we illustrate the most prominent phenomena of direct gene/behavior causal relationships, primarily in the field of female sex behavior responses, and also draw on examples of indirect routes of genetic influence, primarily regarding male-typical sex behavior.
