Research on the genetic regulation of insect physiology and behaviour is a fairly new field in biological research. The development of modern techniques like transcriptome studies, micro-arrays and RNA interference has altered the way we study insects. In this book, several candidate genes regulating different aspects of insect physiology and behaviour are studied in three different insect models, with a great focus on the desert locust. It was found that the genes studied in this work could, in the future, be important in solving the locust pests that threaten a large part of the worlds...