Short-lived killifish reveals link between gene expression and longevity

It's well known that genetic differences among individuals influence lifespan, but a new study appearing February 24 in Cell Systems suggests that differences in patterns of gene expression in youth may also predict longevity. Researchers of the shortest-lived vertebrate—the African turquoise killifish—found that when genes involved in a cell's energy production are less active at a young age, the animals tend to live longer.