Complex Traits in the Light of  Evolution

Why are some traits influenced by many genetic variants while others by just a few?

How does natural selection shape the genetic basis of traits?

How does selection on traits shape genetic variation across the genome?
 

We believe that nothing about complex traits makes sense except in the light of evolution. We use population and quantitative genetic theory, combined with statistical inference on genomic datasets, to understand the evolutionary processes shaping human complex traits.