October 19 2011

12:00 LSB 2320

Derek Roff
Dept of Biology, UC Riverside

The Evolution of Trade-offs: A Central Problem of Evolutionary Biology


Trade-offs are an essential assumption of evolutionary biology. In this seminar I address this issue from three perspectives. .I first illustrate the importance of trade-offs with three examples: the evolution of age and size at maturity in fish and reptiles, the evolution of fledging age in songbirds and the evolution of insecticide resistance and diapause in the lepidopteran. Second, I discuss how selection on one or both components of a trade-off affects the evolutionary trajectories. Third, I change perspective and describe how selection changes the genetic architecture of a trade-off.











































































































































































































































































































































































































































































































































































































this is idtest: