Fruit flies adapt to climate change through metabolic rewiring

Evolutionary consequences due to climate change are currently a “hot topic” in evolutionary research. A warmer environment results in the complete rewiring of the metabolism in fruit flies by changes only in few genes. Researchers at Vetmeduni Vienna have shown in Genome Biology that evolutionary processes result in the adaption to a new, hot environment in just a few generations. Variants of two genes connected to an essential regulator of the metabolic budget system were identified as a key factor. The study shows that fruit flies, contrary to previous assumptions, do not adapt through many small genetic changes but through changes in a small number of “influential” genes. (Mehr in: Pressemitteilungen – idw – Informationsdienst Wissenschaft)