Leveraging population admixture to characterize the heritability of complex traits.

Noah Zaitlen, Alkes Price and colleagues report a new approach to estimate the narrow-sense heritability of complex traits from unrelated individuals in a recently admixed population. They apply this approach to estimate the heritability for 13 quantitative or case-control phenotypes in 21,497 African-American individuals and suggest the inflation of family-based h2 estimates.